🔍 牛津詞典
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典 🎯

檢索以下詞典:
(Mr. Ng 不推薦使用 Google 翻譯!)
最近搜尋:
TOEFL BNC: 6734 COCA: 6352

reef

1 of 3

noun (1)

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

reef

2 of 3

verb

reefed; reefing; reefs

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 adjective

reef

3 of 3

noun (2)

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 adjective

Word History

Etymology

Noun (1)

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

Noun (2)

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

First Known Use

Noun (1)

14th century, in the meaning defined at sense 1

Verb

1670, in the meaning defined at transitive sense 1

Noun (2)

1584, in the meaning defined at sense 1a

Time Traveler
The first known use of reef was in the 14th century

👨🏻‍🏫 Mr. Ng 韋氏詞典 📚 – mw.mister5️⃣.net
切換為繁體中文
Site Uptime