American English

Definition of reef verb from the Oxford Advanced American Dictionary



reef something (technology)Verb Forms present simple I / you / we / they reef
he / she / it reefs
past simple reefed
-ing form reefing
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to make a sail smaller by tying or rolling up part of it They set sail with the sails reefed against the strong winds.
See the Oxford Advanced Learner's Dictionary entry: reef

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