on
- adjective
- /ɑn/
- Further, you will be informed when the camera is on and when it is off.
- on again
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Watch on YouTubeNumber two, if you leave your lights on at night, I'm looking.
- Number two, if you leave your lights on at night, I'm looking.
Examples
-
And as you guys can see, our lights are still on, we're still cooking.
-
These front lights are supposed to be on from dusk till dawn!
-
The lights in her room are on, but from the street, it looks empty.
Fiction book (1991) -
Two weeks later, the lights were on in the stadium.
Academic text (2013) -
Miss, please, the seat belt sign is still on.
-
The lights are on in the kitchen, where the cops are playing poker and watching TV.
Fiction book (1992) -
So the LEDs should be on and they're not.
-
Although he had assumed the pool was closed, the lamps were on, sodium halos hanging in the mist.
Fiction book (1992) -
The television is on now, so we can watch our favorite show.
-
Make sure the heater is on before the guests arrive.
Synonyms
Working and ready to use, for example machines or systems
Working now and serving its purpose
Antonyms
Idioms
- Offensive
To keep asking someone to do something all the time in an annoying, pushy way
Immediately at the exact place where something happens, often needing a quick response
- Literature
To be at the top of a place or feel very excited, sometimes meaning from a power above
Compounds
- Specialized
How much money you gain from putting money into something, shown as a percent
- Offensive
A set of actions and laws that harm or limit women's rights, especially in politics and society
- Literature
A long talk by Jesus that gives key moral teachings in the Bible books Matthew and Luke
- Jargon
A small acting role in a play, film, or TV show that usually has no spoken lines
- UK
A rule in cricket making a team bat again immediately after a very low first innings score
A sentence that joins more than one full idea without proper punctuation or connecting words
- Literature
A claim that some people are trying to stop public Christmas celebrations
A small bottle with a round ball at the top that applies liquid to the skin like deodorant
An international agreement from 1947 to reduce taxes on imports and other trade barriers
- Specialized
Official permission to sell alcohol for people to drink in a bar or restaurant
- Formal
An act of placing hands on a person to bless, give authority, or heal them
- Specialized
An advance to first base after a batter receives four pitches outside the strike zone
- Specialized
A percent showing how well a company makes profit from the money put into it
A place that makes a neighborhood look bad because it is empty, damaged, or not cared for
- Formal
A court decision before a trial made only from written statements when the main facts are agreed
How Active
Surface Forms
Etymology
On originally meant being 'in place' or 'in contact', so when a device is on it is 'in action' or 'working'. That's why we say the lights are on to mean they are active.