Practice Words: o


obey
verb
to act as one is ordered to act
object
verb
to show that one does not like or approve; to protest
object
noun
something not alive that can be seen or touched
observe
verb
to watch or look at carefully; to see or notice something; to celebrate or honor something (“They will observe the anniversary of the day she was born.”)
occupy
verb
to live or stay in a place; to take and hold or to control by force
ocean
noun
the area of salt water that covers almost seventy-five percent of the earth’s surface; any of the five main divisions of this water
October
Number: 10
of
preposition
made from; belonging to; about; connected to; included among
off
adjective
away; at a distance; condition when something is no longer operating or continuing; not on; not connected
offer
verb
to present or propose
offer
noun
the act of presenting or proposing; that which is presented or proposed
office
noun
a room or building where business or work is done; a public position to which one is elected or appointed
officer
noun
a person in the military who commands others; any person who is a member of a police force
official
noun
a person with power in an organization; a representative of an organization or government
official
adjective
of or about an office; approved by the government or someone in power
often
adverb
many times
oil
noun
a thick liquid that does not mix with water and that burns easily; a black liquid taken from the ground and used as fuel
old
adjective
not young or new; having lived or existed for many years
on
preposition
above and held up by; touching the upper surface of (“The book is on the table.”); supported by (“He is on his feet.”); about (“The report on the meeting is ready.”); at the time of (“He left on Wednesday.”)
once
adverb
one time only
one
Number: 1
Adjective: first
only
adjective
being the single one or ones; no more than (“We have only two dollars.”)
open
verb
to start (“They opened talks.”)
open
adjective
not closed; not secret
operate
verb
to do work or a job; to use (a machine); to cut into the body for medical reasons
opinion
noun
a belief based on one’s own ideas and thinking
oppose
verb
to be against; to fight against
opposite
adjective
different as possible; completely different from; exactly the other way (“North is the opposite direction from south.”)
oppress
verb
to make others suffer; to control by the use of unjust and cruel force or power
or
conjunction
giving another of two choices; giving the last of several choices
orange
adjective
of a color between red and yellow
orange
noun
a very common sweet fruit with an orange color
orbit
verb
to travel in space around a planet or other object
order
noun
a command; the correct or normal way things are organized; a peaceful situation in which people obey laws
order
verb
to give a command; to tell someone what to do
organ
noun
a part of the body that has a special purpose, such as the heart or brain
organism
noun
a living thing such as an animal, plant, or human
organize
verb
to put in order; to put together into a system
origin
noun
the point or place where something begins
other
determiner
different; of another kind; the remaining one or ones of two or more (“That man is short; the other is tall.”)
out
adverb
away from the inside; opposite of in
over
conjunction
above; covering; across, in or on every part of (“all over the world”)
overthrow
verb
to remove from power; to defeat or end by force
owe
verb
to pay or have to repay (usually money) in return for something received
own
verb
to have or possess for oneself