| Idiom | Meaning | Example |
| a bird in the hand is worth two in the bush |
having one is better than seeing many
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When searching for a better job, remember A bird in the hand... .
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| a bit at sea |
a bit unsure, uncertain
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He seems a bit at sea since his brother died. They were close.
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| a bit dense |
(See dense)
|
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| a bit off/a bit mental |
not rational, unbalanced, one brick short
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Kate talks to the birds. Do you think she's a bit off?
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| a bitch [B] |
a complaining woman, a woman who nags
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What a bitch! She complains to us and criticizes her kids.
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| a bite to eat |
a lunch, a snack
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We can grab a bite to eat at the arena. They sell snacks there.
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| a bitter pill |
a negative event, a loss, a painful experience
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Divorce is a bitter pill for her. She believed in her marriage.
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| a black mark |
a mark beside your name means you are bad
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If you cause an accident, you get a black mark beside your name.
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| a blackout (TV) |
refusal to broadcast an event during that event
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A blackout is intended to encourage fans to attend an event.
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| a blackout (war) |
a policy that requires lights to be turned off
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Blackouts prevented bombers from seeing their targets at night.
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