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Meaning of when opportunity knocks | Babel Free

Phrase CEFR C1

Definitions

When an opportunity arises.

CEFR level

C1

Advanced
This word is part of the CEFR C1 vocabulary — advanced level.

See also

when push comes to shove when the balloon goes up when the cat's away when the cat's away the mice will play when the chips are down when the going gets tough, the tough get going