On vs. About

Difference Between On and About
Onadjective
In the state of being active, functioning or operating.
Aboutpreposition
In a circle around; all round; on every side of; on the outside of.
Onadjective
Performing according to schedule.
Are we still on for tonight?Is the show still on?Aboutpreposition
Near; not far from; approximately; regarding time, size, quantity.
Onadjective
Acceptable, appropriate.
You can't do that; it's just not on.Aboutpreposition
On the point or verge of.
the show is about to start;I am not about to admit to your crimeOnadjective
(informal) Destined, normally in the context of a challenge being accepted; involved, doomed.
"Five bucks says the Cavs win tonight." ―"You're on!"Mike just threw coffee onto Paul's lap. It's on now.Aboutpreposition
On one's person; nearby the person.
Onadjective
Having reached a base as a runner and being positioned there, awaiting further action from a subsequent batter.
Aboutpreposition
Over or upon different parts of; through or over in various directions; here and there in; to and fro in; throughout.
Onadjective
(euphemistic) Menstruating.
Aboutpreposition
Concerned with; engaged in; intent on.
Onadverb
To an operating state.
turn the television onAboutpreposition
Concerning; with regard to; on account of; on the subject of; to affect.
He knew more about what was occurring than anyone.Onadverb
Along, forwards (continuing an action).
drive on, rock onAboutpreposition
(figurative) In or near, as in mental faculties or (literally) in possession of; in control of; at one's command; in one's makeup.
He has his wits about him.Onadverb
In continuation, at length.
and so on.He rambled on and on.Aboutpreposition
In the immediate neighborhood of; in contiguity or proximity to; near, as to place.
Onadverb
(cricket) In, or towards the half of the field on the same side as the batsman's legs; the left side for a right-handed batsman; leg. en
Aboutadverb
Not distant; approximate.
Onadverb
(obsolete in the US) Later.
Ten years on, nothing had changed in the village.Aboutadverb
On all sides; around.
Onadverb
Of betting odds, denoting a better than even chance. See also odds-on.
That horse is at twenty-to-one on, so you need to stake twenty pounds just to win one pound.''Aboutadverb
Here and there; around; in one place and another; up and down.
Onpreposition
Positioned at the upper surface of, touching from above.
on the table;on the couchThe parrot was sitting on Jim's shoulder.Aboutadverb
Nearly; approximately; with close correspondence, in quality, manner, degree, quantity, or time; almost.
about as cold;about as highOnpreposition
At or near; adjacent to.
Soon we'll pass a statue on the left.The fleet is on the American coast.Croton-on-Hudson, Rostov-on-Don, Southend-on-SeaAboutadverb
Near; in the vicinity.
Onpreposition
Covering.
He wore old shoes on his feet.Aboutadverb
In succession; one after another; in the course of events.
Onpreposition
At the date of.
Born on the 4th of July.Aboutadverb
On the move; active; astir.
Onpreposition
Some time during the day of.
I'll see you on Monday.The bus leaves on Friday.Can I see you on a different day? On Sunday I'm busy.Aboutadverb
To a reversed order; half round; facing in the opposite direction; from a contrary point of view.
to face about;to turn oneself aboutOnpreposition
Dealing with the subject of, about, or concerning something.
A book on history.The World Summit on the Information Society.Aboutadverb
(nautical) To the opposite tack.
Onpreposition
Touching; hanging from.
The fruit ripened on the trees.The painting hangs on the wall.Aboutadverb
(obsolete) Preparing; planning.
Onpreposition
(informal) In the possession of.
I haven't got any money on me.Aboutadverb
(archaic) In circuit; circularly; by a circuitous way; around the outside; in circumference.
a mile about, and a third of a mile acrossOnpreposition
Because of, or due to.
To arrest someone on suspicion of bribery.To contact someone on a hunch.Aboutadverb
Going to; on the verge of; intending to.
Onpreposition
Upon; at the time of (and often because of).
On Jack's entry, William got up to leave.On the addition of ammonia, a chemical reaction begins.Aboutadjective
Moving around; astir.
out and about;up and aboutAfter my bout with Guillan-Barre Syndrome, it took me 6 months to be up and about again.Onpreposition
Paid for by.
The drinks are on me tonight, boys.The meal is on the house.I paid for the airfare and meals for my family, but the hotel room was on the company.Aboutadjective
In existence; being in evidence; apparent
Onpreposition
Used to indicate a means or medium.
I saw it on television.Can't you see I'm on the phone?Aboutadjective
on the move;
up and aboutthe whole town was astir over the incidentOnpreposition
Indicating a means of subsistence.
They lived on ten dollars a week.The dog survived three weeks on rainwater.Aboutadverb
(of quantities) imprecise but fairly close to correct;
lasted approximately an hourin just about a minutehe's about 30 years oldI've had about all I can standwe meet about once a monthsome forty people cameweighs around a hundred poundsroughly $3,000holds 3 gallons, more or less20 or so people were at the partyOnpreposition
Away or occupied with (e.g. a scheduled activity).
He's on his lunch break.on vacation;on holidayAboutadverb
all around or on all sides;
dirty clothes lying around (or about)let's look about for helpThere were trees growing all aroundshe looked around herOnpreposition
Denoting performance or action by contact with the surface, upper part, or outside of anything; hence, by means of; with.
to play on a violin or pianoHer words made a lasting impression on my mind.Aboutadverb
in the area or vicinity;
a few spectators standing abouthanging aroundwaited around for the next flightOnpreposition
Regularly taking (a drug).
You've been on these antidepressants far too long.He's acting so strangely, I think he must be on something.Aboutadverb
to or among many different places or in no particular direction;
wandering about with no place to gopeople were rushing aboutnews gets around (or about)traveled around in Asiahe needs advice from someone who's been aroundshe sleeps aroundOnpreposition
Under the influence of (a drug).
He's acting crazy because he's on crack right now.Aboutadverb
in or to a reversed position or direction;
about facebrought the ship aboutsuddenly she turned aroundOnpreposition
(mathematics) Having identical domain and codomain.
a function onAboutadverb
in rotation or succession;
turn about is fair playOnpreposition
(mathematics) Having as domain and V as codomain, for some set V and integer n.
an operator onAboutadverb
(of actions or states) slightly short of or not quite accomplished; `near' is sometimes used informally for `nearly' and `most' is sometimes used informally for `almost';
the job is (just) about donethe baby was almost asleep when the alarm soundedwe're almost finishedthe car all but ran her downhe nearly faintedtalked for nigh onto 2 hoursthe recording is well-nigh perfectvirtually all the parties signed the contractI was near exhausted by the runmost everyone agreesOnpreposition
(mathematics) Generated by.
the free group on four lettersOnpreposition
Supported by (the specified part of itself).
A table can't stand on two legs.After resting on his elbows, he stood on his toes, then walked on his heels.Onpreposition
At a given time after the start of something; at.
Onpreposition
In addition to; besides; indicating multiplication or succession in a series.
heaps on heaps of foodmischief on mischief; loss on lossOnpreposition
of
Onpreposition
Indicating dependence or reliance; with confidence in.
I depended on them for assistance.He will promise on certain conditions.Do you ever bet on horses?Onpreposition
Toward; for; indicating the object of an emotion.
Have pity or compassion on him.Onpreposition
(obsolete) At the peril of, or for the safety of.
Onpreposition
In the service of; connected with; of the number of.
He is on a newspaper; I am on the committee.Onpreposition
By virtue of; with the pledge of.
He affirmed or promised on his word, or on his honour.Onpreposition
To the account or detriment of; denoting imprecation or invocation, or coming to, falling, or resting upon.
On us be all the blame.A curse on him!Please don't tell on her and get her in trouble.He turned on her and has been her enemy ever since.He went all honest on me, making me listen to his confession.Onpreposition
(especially when numbers of combatants or competitors are specified) Against; in opposition to.
Onpreposition
Without.
Onverb
to switch on
Can you on the light?Onnoun
In the Japanese language, a pronunciation, or reading, of a kanji character that was originally based on the character's pronunciation in Chinese, contrasted with kun.
Most kanji have two kinds of reading, called "on" and "kun".Onadjective
in operation or operational;
left the oven onthe switch is in the on positionOnadjective
(of events) planned or scheduled;
the picnic is on, rain or shinewe have nothing on for Friday nightOnadjective
performing or scheduled for duties;
I'm on from five to midnightNaval personnel on duty in Alaskaher on-duty hours were 11p.m. to 7 a.m.Onadverb
with a forward motion;
we drove along admiring the viewthe horse trotted along at a steady pacethe circus traveled on to the next citymove alongmarch onOnadverb
indicates continuity or persistence or concentration;
his spirit lives onshall I read on?Onadverb
in a state required for something to function or be effective;
turn the lights onget a load on