O
Idioms beginning with "O"
Part of speech, explanation, example sentences, pronunciation
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Contents of O:
[on the air] {adj.} or {adv. phr.}
Broadcasting or being broadcast on radio or TV.
His show is on the air at six o'clock.
The ball game is on the air now.
[on the alert] {adj. phr.}
Alert; watchful; careful.
Campers must be on the alert for poison ivy and poison oak.
Drivers must be on the alert for traffic signals.
Compare: [ON ONE'S TOES].
[on the ball] {adj. phr.}, {informal}
1. Paying attention and doing things well. — Used after "is" or "get".
Ben is really on the ball in school.
The coach told Jim he must get on the ball or he cannot stay on the team.
Compare: [GET WITH […]
[on the bandwagon] {adj. phr.}, {informal}
In or into the newest popular group or activity; in or into something you join just because many others are joining it. — Often used after "climb", "get", or "jump".
* /When all George's friends decided to […]
[on the beam] {adv.} or {adj. phr.}
1. (Of an airplane) In the radio beam that marks the path to follow between airports; flying in the right direction.
A radio signal tells the pilot of an airplane when he is flying on the beam.
2. {slang}
Doing […]
[on the bench]
1. Sitting in a law court as a judge.
Judge Wyzanski is on the bench this morning.
2. Sitting among the substitute players.
The coach had to keep his star player on the bench with a sprained ankle.
Compare: [BENCH WARMER].
[on the blink] {adj. phr.}
Faulty; malfunctioning; inoperative.
I need to call a competent repairman because my computer is on the blink again.