WordReference Random House Learner's Dictionary of American English © 2015
on /ɑn, ɔn/USA pronunciation
so as to be or to remain supported by:Put the package on the table.
so as to be attached to or unified with:There is a label on the jar.
so as to be a covering or wrapping for:Put the blanket on the baby.
in connection, association, or cooperation with:to serve on a jury.
so as to be a supporting part or base of:legs on a chair.
(used to show that the preceding noun has the following noun as its place, location, situation, etc.):an ugly scar on the face.
very close to; at the edge of:a house on the lake.
in the direction of:to sail on a southerly course.
using as a means of carrying or of supporting or providing movement:arrived on the noon plane.
by the agency or means of:drunk on wine.
directed against or toward:She played a joke on him.
having as a subject; being about (something):a new book on dogs.
in a state, condition, or process of:The workers are on strike.
engaged in or involved with:I'm on the second chapter of the book.
subject to:If there is a doctor on call it means that a doctor can be summoned quickly in an emergency.
having as a source or agent:He came to depend on his friends.
having as a basis or ground:on my word of honor.
assigned to or working at:Who's on duty today?
(used with days and dates) at the time mentioned:The train arrives every hour on the hour (= at one, two, three o'clock, etc.)
at the time or occasion of:You have to pay cash on delivery (= at the time delivery is made).
within the required limits of:The train arrived on time.
having as the object or end of motion:The demonstrators marched on the capital.
having as the object or the goal of action, thought, desire, etc.:to gaze on a scene.
having as the subject or reference; with respect to:What are your views on rock music?
Informal Termspaid for by, esp. as a treat or gift:Dinner is on me.
taking or using as a measure or cure to improve one's health, energy, etc.:He's on a low-salt diet.
regularly taking or addicted to:She's not on drugs anymore.
Informal Termswith; carried by:I have no money on me.
so as to disturb or affect in a bad way:My hair dryer broke on me.
having as a risk or unfortunate result:on pain of death.
in addition to:millions on millions of stars.
in, into, or onto a position of being supported or attached:Sew the buttons on.
in, into, or onto a position of covering or wrapping:Put your raincoat on.
tightly attached to a thing, such as for support:Hold on!
toward a place, point, activity, or object:to look on while others work.
forward, onward, or along, such as in any course or process later on:further on.
with continuous activity:continued on with his job.
into or in active operation or performance:Turn the gas on.
adj. [be + ~]
operating or in use:Is the radio on?
taking place; occurring:Don't you know there's a war on?
being broadcast:What's on tonight, anything interesting to watch?
scheduled or planned:Do you have anything on for tomorrow?
- behaving in a very animated or theatrical manner:He never stops and just relaxes; he's always on.
- functioning or performing at one's best:The pitcher is really on today.
Idiomson and off, with periods of time in between; intermittently.
Idiomson and on, at great length:to chatter on and on.Compareat, in.
Collins Concise English Dictionary © HarperCollins Publishers::
on /ɒn/ prep
adv (often used as a particle)
- in contact or connection with the surface of; at the upper surface of: an apple on the ground, a mark on the table cloth
- attached to: a puppet on a string
- carried with: I've no money on me
- in the immediate vicinity of; close to or along the side of: a house on the sea, this verges on the ridiculous!
- within the time limits of a day or date: he arrived on Thursday
- being performed upon or relayed through the medium of: what's on the television?
- at the occasion of: on his retirement
- used to indicate support, subsistence, contingency, etc: he lives on bread, it depends on what you want
- regularly taking (a drug): she's on the pill
- addicted to: he's on heroin
- by means of (something considered as a mode of transport) (esp in such phrases as on foot, on wheels, on horseback, etc)
- in the process or course of: on a journey, on strike
- concerned with or relating to: a tax on potatoes, a programme on archaeology
- used to indicate the basis, grounds, or cause, as of a statement or action: I have it on good authority
- against: used to indicate opposition: they marched on the city at dawn
- used to indicate a meeting or encounter: he crept up on her
- (used with an adjective preceded by the) indicating the manner or way in which an action is carried out: on the sly, on the cheap
- informal staked or wagered as a bet: ten pounds on that horse
- charged to: the drinks are on me
- in the position or state required for the commencement or sustained continuation, as of a mechanical operation: the radio's been on all night
- attached to, surrounding, or placed in contact with something
- in a manner indicating continuity, persistence, concentration, etc: don't keep on about it, the play went on all afternoon
- in a direction towards something, esp forwards; so as to make progress: we drove on towards London, march on!
- on and off, off and on ⇒ intermittently; from time to time
- on and on ⇒ without ceasing; continually
- functioning; operating: turn the switch to the on position
- (postpositive) informal performing, as on stage: I'm on in five minutes
- definitely taking place: the match is on for Friday, their marriage is still on
- tolerable, practicable, acceptable, etc: your plan just isn't on
- on at ⇒ informal nagging: she was always on at her husband
- (of a bowler) bowling
Etymology: Old English an, on; related to Old Saxon an, Old High German, Gothic ana
- (modifier) relating to or denoting the leg side of a cricket field or pitch: the on side, an on drive
- (in combination) used to designate certain fielding positions on the leg side: long-on, mid-on
ON abbreviation for
- Old Norse
- (esp in postal addresses) Ontario
On /ɒn/ n
- the ancient Egyptian and biblical name for Heliopolis
'on' also found in these entries:
__a hot summer day, on or in?
- It's impossible to save up on\from your salary.
-I bought a car for credit on a year installments.
, detailed on your company's website,
,on speaking and writing
? on a sudden
. . . safety regulations listed on the wall (of, beside)
. . .my mind was never in a holier frame than while I gazed on that . . .
... based <on, in> the occurrence of ...
... born with 300 bones ... 206 bones 'on' adulthood ...
... dumped communally on the corner.
... not allowed/disallowed on these premises.
... on sixteen March ...
... participating <in, on> the conference.
... perspective on which ...
... than they might doing work that is imposed on them by others
... the arenas that were on offer to me.
... the Head of Department perform the surgery on/for me.
... throwing on?
.......Hung out on the line.......
....out on a new suit for work
...a concord on something to be worked out...
...and developing potential <at, in, on> taking one’s own initiative."
...at hand or on hand...
...I rarely (play) game on my Xbox.
...is on TV...was on TV OR would be on TV
...merely on testimony
...not knowing which side his matzoh is buttered on,...
...on the fringes of...
...on the gentleman with their port.
more...Look up "on" at Merriam-WebsterLook up "on" at dictionary.com
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