1

reef

noun \ ˈrēf \

Definition of reef

1 :a part of a sail taken in or let out in regulating size
2 :reduction in sail area by reefing

Origin and Etymology of reef

Middle English riff, from Old Norse rif; probably akin to Old Norse rīfa to rend — more at rive

Other Nautical Terms


2

reef

verb

Definition of reef

transitive verb
1 :to reduce the area of (a sail) by rolling or folding a portion
2 :to lower or bring inboard (a spar) wholly or partially
intransitive verb
:to reduce a sail by taking in a reef

reefable

play \ˈrē-fə-bəl\ adjective

First Known Use of reef

1670

Other Nautical Terms


3

reef

noun

Definition of reef

1 a :a chain of rocks or coral or a ridge of sand at or near the surface of water — compare atoll, barrier reef
b :a hazardous obstruction
2 :lode, vein

reefy

play \ˈrē-fē\ adjective

Origin and Etymology of reef

Dutch rif, from Middle Dutch, from Old Norse, literally rib; akin to Old English ribb rib — more at rib

Other Oceanography Terms



REEF Defined for Kids

reef

noun \ ˈrēf \

Definition of reef for Students

:a chain of rocks or coral or a ridge of sand at or near the surface of water


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