on
- adjective
- /ɑn/
- Further, you will be informed when the camera is on and when it is off.
- on again
Number 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
Immediately at the exact place where something happens, often needing a quick response
Compounds
- Specialized
How much money you gain from putting money into something, shown as a percent
- Jargon
A small acting role in a play, film, or TV show that usually has no spoken lines
- Jargon
The illegal action of hitting the ball forward with the hand or arm while trying to catch it
- 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
A sentence that joins more than one full idea without proper punctuation or connecting words
An international agreement from 1947 to reduce taxes on imports and other trade barriers
- Formal
A group at the United Nations that promotes and protects people's basic rights worldwide
- UK
A rule in cricket making a team bat again immediately after a very low first innings score
- Specialized
An advance to first base after a batter receives four pitches outside the strike zone
A place that makes a neighborhood look bad because it is empty, damaged, or not cared for
- Formal
An act of placing hands on a person to bless, give authority, or heal them
- Formal
A court decision before a trial made only from written statements when the main facts are agreed
- Archaic
A manual gearbox with three speeds and the gear stick on the steering column
- Literature
A claim that some people are trying to stop public Christmas celebrations
- Jargon
An extra feature you add to a product or system to make it work better
- Formal
A United Nations group that oversees international rules and policies about drugs
A United Nations group that works for equal rights for women worldwide
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.