reef.
A chain or range of rocks, sand, or coral lying at or near the surface of the water.
Meaning & usage
A chain or range of rocks, sand, or coral lying at or near the surface of the water.
A large vein of auriferous quartz; hence, any body of rock yielding valuable ore.
Where this word comes from
From earlier riff, from Middle English rif, from Old Norse rif (“rib, reef”), from Proto-Germanic *ribją (“rib, reef”), from Proto-Indo-European *h₁rebʰ- (“arch, ceiling, cover”). Dutch rif (“reef”), Low German riff, reff (“reef”), German Riff (“reef, ledge”) are also borrowed from Old Norse. Doublet of rib.
A portion of a sail rolled and tied down to lessen the area exposed in a high wind.
A reef knot.
Where this word comes from
From Middle English reef, from Old Norse rif, Middle Dutch rif, rēve, and/or Middle Low German ref. Possibly a figurative use of the word for “rib” in etymology 1 above, in which case all forms must, again, be borrowings from Old Norse. Alternatively it may be a different word related to Old English rift (“curtain, veil”), ārāfian (“to uncoil, wind off”).
To take in part of a sail in order to adapt the size of the sail to the force of the wind.
To pull or yank strongly, especially in relation to horse riding.
To move the floats of a paddle wheel toward its center so that they will not dip so deeply.
Reef the paddles.
To manipulate the lining of a person's pocket in order to steal the contents unnoticed.
Where this word comes from
From Middle English reef, from Old Norse rif, Middle Dutch rif, rēve, and/or Middle Low German ref. Possibly a figurative use of the word for “rib” in etymology 1 above, in which case all forms must, again, be borrowings from Old Norse. Alternatively it may be a different word related to Old English rift (“curtain, veil”), ārāfian (“to uncoil, wind off”).
Scabby; scurvy.
Where this word comes from
From Middle English ref, hreof, from Old English hrēof (“rough, scabby, leprous", also "a leper”), from Proto-Germanic *hreubaz (“rough, scabby, scrubby”), from Proto-Indo-European *kreup- (“scab, crust”), related to Old English hrēofla (“leprosy, leper”). Cognate with Scots reif (“a skin disease leaving crusts on the skin, the scab”), Old High German riob (“leprous, scabby, mangy”), Icelandic hrjúfur (“scabby, rough”). Compare riffe, dandruff.
The itch; any eruptive skin disorder.
Dandruff.
Where this word comes from
From Middle English ref, hreof, from Old English hrēof (“rough, scabby, leprous", also "a leper”), from Proto-Germanic *hreubaz (“rough, scabby, scrubby”), from Proto-Indo-European *kreup- (“scab, crust”), related to Old English hrēofla (“leprosy, leper”). Cognate with Scots reif (“a skin disease leaving crusts on the skin, the scab”), Old High German riob (“leprous, scabby, mangy”), Icelandic hrjúfur (“scabby, rough”). Compare riffe, dandruff.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.