8 Letter Words Starting with O for Optimal Vocabulary!

Are your children speaking a lot? Do you dream about improving their vocabulary with some interesting words?

If you are thinking that it is vital to strengthen the communication skills of your children, then you must start their lessons at an early age to help them have a varied and vast vocabulary.

If you have the same feeling, then, let us start with some interesting 8 letter words that start with the letter O.

Here we go…

List Of 8-Letter Words Starting With O

oafishly	adverb for lacking elegance, akin to an oaf/ adverb for lacking consideration for others
oaklings	plural of oakling, meaning a small or young oak tree
Oakville	a town in southern Ontario, suburb of Toronto
oarlocks	devices attached to the gunwale of a rowboat to hold the oars in place while rowing
oarweeds	plural of oarweed, meaning a brown alga, Laminaria digitata, found on exposed shores
oatcakes	plural of oatcake, any of many flat biscuits, or cakes, made from oatmeal
oathable	capable of having an oath administered
oatmeals	plural for rolled oats dish/ plural for a thin, watery porridge, formerly fed to the poor
Obamacan	member of the U.S. Republican Party who supported Obama‘s election as president
Obamacon	a conservative who supports or supported the election of Barack Obama as president
obduracy	being intractable or inflexible/ the quality of having a firm determination to do something
obdurate	stubbornly, and usually unreasonably, holding to an opinion, decision or purpose/ showing no remorse or regret
obduring	present participle of obdure
obeahing	relating to a form of magic, medicine or witchcraft originating in Africa
obeahism	alternative of obiism, meaning belief in, or the practice of, the obeah superstitions
obedient	complying or willing to comply with an order or request/ remaining loyal and steadfast
obeisant	courteously deferential and respectful/ prepared to obey others unquestioningly
obelised	simple past tense and past participle of obelise
obelises	third-person singular simple present indicative form of obelise
obelisks	plural for a tall, square, tapered, stone monolith topped with a pyramidal point
obelisms	plural of obelism, the practice of annotating manuscripts with marks set in the margins
obelized	simple past tense and past participle of obelize
Oberkorn	a town in Luxembourg, in the commune of Differdange, in the canton of Esch-sur-Alzette
obeyable	capable of being obeyed
obituary	a published announcement of a death, usually with a short biography of the dead person

objected	past tense for to express one’s opposition to or disagreement with something/ to object to
objector	a person who opposes official policy, especially that of an authoritarian state
objuring	present participle of objure, meaning to swear an oath
oblately	adverb for having even or level surface/ adverb for relating to monks or monasteries
oblation	the voluntary giving of alms to those in need/ the Christian sacrament of Holy Communion
oblatory	relating to sacrifice
obligate	to bind, compel, or oblige by a social, legal, or moral tie/ to pledge to do something
obligayo	a prominent countermelody, often written to be played or sung above the principal theme
obligees	plural of obligee, meaning the party owed an obligation by another party
obligers	plural for one who pleases
obliging	happy and ready to do favors for others/ marked by confidence, charm, and elegance
obligors	plural of obligor, meaning the party bearing a legal obligation to another party
obliqued	simple past tense and past participle of oblique
obliquer	comparative for located or moving diagonally across or in relation to something
obliques	plural for a slash symbol/ plural for a sloping surface or edge
obliquid	(obsolete) oblique, meaning not straightforward/ indirect
oblivion	a state of emptiness or nothingness/ the state of being unconscious or in a heavy stupor
oblongly	adverb for longer than wide or wider than long/ adverb for having a shape like a rectangle
oblongum	a prolate spheroid/ a figure described by the revolution of an ellipse about its greater axis
Obodrite	a member of a confederation of medieval West Slavic tribes
obscener	comparative for shocking or disgusting to the senses/ comparative for deserving of disgust
obscured	not visible from being hidden or covered/ closed or gray, as of the sky
obscurer	comparative for not fully explained or known about/ comparative for visibly unclear
obscures	to physically make less visible or unclear/ to make difficult to understand
obsequie	obsolete form of obsequy, meaning the last office for the dead/ a funeral rite

observed	visually noticed/ based on, concerned with, or verifiable by experience or observation
observee	one who is observed
observer	a person who watches or notices something/ a person who judges the merits of works
observes	to utter words using speech/ to notice or see/ to become aware of through observation
obsessed	intensely occupied with, or by, a given topic or emotion/ showing, great feeling or passion
obsesses	to be preoccupied with a single topic, thought, or emotion
obsessor	one who is obsessive about something
obsidian	having a jet-black color or pigment/ the molten rock ejected by a volcano from its crater
obsigned	simple past tense and past participle of obsign
obsolete	no longer in use/ characterized by overuse to the point of being uninteresting
obstacle	something that blocks one’s way/ difference of opinion/ the act of delaying/ iron curtain
obstruct	to block or clog up a space or opening/ to cause to fail/ to impede the work, or ability of
obtained	to have attained or achieved/ to have come upon after study, searching, or effort
obtainer	one who purchases
obtected	(obsolete) protected/ covered
obtemper	to obey a decree or judgment
obtended	simple past tense and past participle of obtend
obtruder	one who interferes, intrudes, or gets involved when not welcome
obtrudes	to interfere in matters that are not one’s concern
obtunded	past tense for to reduce the effects of/ past tense for to decrease in strength or feeling
obturate	to block or clog up a space or opening
obtusely	in an obtuse manner/ without liveliness/ in a manner demonstrating a lack of knowledge
obtusest	superlative for showing no care, emotion, or feeling, especially toward others
obtusity	the quality of being intellectually dull
obverses	plural for a coin’s head, or the side of a medal or badge that has the principal design

obverted	simple past and past participle of obvert, meaning to turn so as to show another side
obviable	capable of being obviated
obviates	to annul by an authoritative act/ to neutralize or cancel by exerting an opposite and equal force
obviator	one who obviates
obvolute	that overlaps something
Obwalden	a canton of Switzerland
ocarinas	woodwind musical instruments closed at both sides to produce an enclosed space
occasion	a special or noteworthy event, ceremony, or celebration/ a particular incident
occident	compass direction
occipita	plural for the back or hindmost part of something
occluded	past tense for to obstruct/ past tense for to prohibit or indirect the participation or inclusion of
occluder	an object that partially or completely impedes the amount of light reaching the eye
occlusal	on the side of a tooth which mates with the opposing tooth/ of or relating to occlusion
occlusor	a muscle that closes an opening
occulted	past tense for to cover or hide from view, or to obscure the meaning of
occulter	any object, natural or man-made, that blocks the light, of an object from an observer
occultly	adverb for mysterious or difficult to understand/ adverb for relating to thaumaturgy, magical
occupant	person who resides in a place/ a legal holder, typically of ownership of something
occupate	(obsolete) to occupy
occupied	busy and engaged in activity or work/ very interested in, or absorbed by, something
occupier	one who occupies, with respect to a foreign government controlling the territory of another
occupies	to hold or engage the attention of / to fill or take up/ to inhabit or reside in a place
occurred	to have gradually increased in detail/ to have come into being as a result of something
oceanaut	an explorer in a submarine/ someone who lives or does scientific work underwater
Oceanian	relating to Australia and its surrounding of New Guinea, and the south west Pacific Ocean

Oceanica	(archaic) Oceania
oceanite	a variety of picrite that is chiefly composed of olivine phenocrysts
ocellate	ocellated
ochering	present participle of ocher, an earth pigment containing silica, aluminum and ferric oxide
ocherous	alternative form of ochrous
ochreate	provided with ochrea, or sheath-formed stipules, as the rhubarb, yellow dock, and knotgrass
ochreous	alternative form of ochrous, meaning ochre-colored/ brownish-yellow/ containing ochre
ockerism	the manners or habits of ockers
ocotillo	various succulent plants unrelated to the cactus, in the genus Fouquieria, living in America
octagons	plural for closed plane figure/ plural for a group of eight people or things
octalogy	(rare) a set of eight works of art that are connected, it can be seen as eight individual works.
octaloop	an eight-base hairpin loop motif
octangle	a geometric figure with eight corners, an octagon
octanoic	of or pertaining to octanoic acid or its derivatives
octanols	any of many isomers of the saturated aliphatic alcohol having eight carbon atoms
octantal	relating to an octant
octarchy	a group of eight people or things
octaroon	alternative spelling of octoroon, someone having one-eighth black ancestry
octeract	a eight-dimensional hypercube
octettes	plural of octette, meaning a group or set of eight of something
Octobers	plural of October, meaning the tenth month of the Gregorian calendar, following September
Octobery	characteristic of the month of October
octodont	refers to the Octodontidae, a rodent’s family with the degu and 12 other South American species
octomino	a polymino made up of eight squares
octonary	a byte of eight bits

octonion	a nonassociative extension of a quaternion
octopods	plural for a cephalopod mollusk with eight sucker-bearing arms
octopole	a multipole configuration with eight equal charges arranged in a circular pattern
octopush	a fast-paced underwater sport also known as underwater hockey
octupled	simple past tense and past participle of octuple
octuplex	having eight components
ocularly	pertaining to, regarding sight or vision/ adverb for relating to or affecting the nerves
oculists	plural for eye specialist
odalique	a female slave in a harem, especially one in the Ottoman seraglio
odalisks	plural of odalisk, alternative of odalisque
oddballs	plural for someone or something strange or unusual that is an object of interest
oddities	plural for the quality of being peculiar or strange/ plural for a rare, unusual, or intriguing object
oddments	plural for a part or quantity that is left after the greater part has been used or removed
Odessite	of or from Odessa/ a native or inhabitant of Odessa
odically	adverb for of or pertaining to poetry, suitable for poetry, or for writing poetry
odiously	in an abominable manner
odometer	a measuring device such as speedometer, milometer, or taximeter
odometre	an instrument attached to the wheel of a vehicle to measure the distance traveled
odometry	measurement of distances by the odometer
odonates	plural for any carnivorous insect of the order Odonata/ plural for a dragonfly or damselfly
odontoma	a hamartoma of odontogenic origin
odontoid	resembling a tooth, especially in shape
odorants	substances that have a distinctive smell, especially one added to something for safety purposes
odorizer	a device to add odor to a gas
odourful	alternative form of odorful, meaning having a distinctive odor
odorless	having no odor/ unable to be detected

oecology	the branch of biology dealing with the relationships of organisms with their environment
oedemata	dropsies or hydrops
oeillade	a glance, especially an amorous one/ an ogle
oenology	the scientific study of wines and winemaking
offender	one who causes or gives offense/ a person or party that initiates hostilities with others
official	having the approval or authorization of an authority or public body/ traditionally accepted
ointment	a smooth oily substance that is rubbed on the skin for medicinal purposes

Some Other Examples Of 8-Letter Words Starting With O

Obamania	occiputs	Ockenden
octuples	octuplet	occulated
odallers	Odinists	odograph
odorized	oenophil	oersteds
oestrone	oestriol	oestrins
oestrous	offbeats	offboard
offended	offences	offcasts
offerees	offerers	offering
offishly	offprint	officers
offramps	offscums	offshoot
offsides	offsider	offshore
offstage	offtakes	offtrack
ogreisms	ofttimes	oftenest
ogresses	ogrishly	ohmmeter
oedipean	oilcloth	oilbirds
oileries	oilfield	oiliness
oilproof	oilpaper	oilsands
oinology	oiltight	oilseeds

Interesting Activities For Kids With 8-Letter Words Starting With O

Sometimes, you may feel that it is necessary to teach your little children several useful new words, right?

However, all of your long-term efforts may prove to be completely futile if your young partners do not know how or where to use them.

So, to avoid this, one of the most effective ways is to engage them in some attractive game-like activities. Here are a few of those activities.

1. Name Game

This is an interesting educational activity through which you can teach your little kids some interesting 8 letter words starting with letter O, and also show them how to use those words perfectly. In this game, you have to say something or question something and your kid will give the answer.

You can even play this game in the opposite method. In that case, your child will ask the question and you will become the answerer. Hence, through this learning activity called name game, you can easily show your kids some beneficial 8 letter words starting with O.

Examples:

Q: What do we call a town in southern Ontario, a suburb of Toronto?

Ans: Oakville

Q: What is the plural for a thin, watery porridge, formerly fed to the poor?

Ans: Oatmeals

Q: What would you call the act of complying or willing to comply with an order or request for remaining loyal?

Ans: Obedient

Q: What is a published announcement of a death, usually with a short biography of the dead person?

Ans: Obituary

Q: What would you call a town in Luxembourg, in the commune of Differdange, in the canton of Esch-sur-Alzette?

Ans: Oberkorn

Q: What would you call something that is not visible from being hidden or covered?

Ans: Obscured

2. Fill In The Blanks

Another very amusing and simple educational activity is widely known as fill-in-the-blanks. Through this method, you may show your tiny tots some widely-used 8 letter words that start with O.

Through this game, your young companions will not only be able to remember the new words without any difficulty but also to utilize them appropriately. Moreover, this kind of easy-to-enjoy word-game will be of major help for their future studies.

Examples:

O_served

Obs_dian

Obso_ete

Obsta_le

Obtrud_r

Occasio_

1. B  2) I  3) L  4) C  5) E  6) N

3. Match The Words With Meanings

A matching activity is another quite useful educational game that can help your kids to learn some new words with ease.

Through this amazing concept, your young companion will be able to grasp the ideas of the same and different. For this, you will have to collect two sets of attractive cards.

One set will carry several colorful pictures, while the other will come with some new 8 letter words starting with O, such as occasion, occipita, obviator, occupant, oceanite, ocotillo, octangle, and many more.

Then, you have to tell your tiny companions how to read those cards and the right way to match them with the respective words.

Furthermore, you can show your kids how to do the matching task and instruct them to follow the steps already done by you.

Conclusion

Thus, these are some interesting educational activities to teach your little kids some useful and new 8 letter words starting with O. However, if you need further assistance, just know that we are always here for you.

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