on, be

¹

be on

²

1. Be scheduled, as in Is tonight's rally still on? [ Colloquial ; second half of 1990s]

2. Be taking medication or an illegal drug, as in Are you on some antibiotic? or He was definitely on narcotics when it happened . [1930s]

3. Be in favor of something or willing to participate, as in We're going dancing after the play—are you on? [ Colloquial ; late 1800s]

4. not be on . Be unacceptable, not allowable, as in I can't believe you'd cancel; that's just not on . This usage is more common in Britain than America. [ Colloquial ; 1930s] For a synonym, see not done . Also see be on to .

5. be on one . Be at one's expense, either as a treat or the butt of a joke. For example, This round of drinks is on me , or He enjoys a good laugh, even when the joke's on him . [ Colloquial ; second half of 1800s]

6. Perform extremely well, as in I can't return Dan's serve—he's really on today . [ Slang ; second half of 1900s]

7. Be engaged in some action, especially on the stage, as in Hurry up, you're on in five minutes . [Late 1700s]

Idioms and Phrases

see be on .

Example Sentences

The court in Bangkok found Sararat Rangsiwuthaporn, 36, guilty of putting poison in a wealthy friend's food and drink while they were on a trip last year.

From BBC

One of the couple’s fears is that Mushie is on her own and waiting for them to come and rescue her, Sidhu said.

From Los Angeles Times

Putting this all together and inflation could be on the up into spring next year, not far off 3%.

From BBC

He has brought up City’s 115 Premier League charges on at least two occasions, suggesting the negativity attaching itself to the club is on his mind.

From BBC

One speaker, a mother, said she was on the verge of being homeless again after timing out of the county’s shelters.

From Los Angeles Times

Related Words

• display
• execute
• give
• go on
• offer
• play
• present
• produce
• represent
• show
• stage