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A rafter is one of the large pieces of wood (sometimes steel) that form the skeleton of a roof. They run from the top of the wall up to the ridge, like the ribs of a tent, and the roof covering sits on them. Builders, and anyone talking about an attic, use this word. 'In the rafters' means up among those beams: birds nest there; a ball can get stuck in the rafters of a gym. A long way back, the word is related to raft, the floating platform — but today a roof rafter has nothing to do with water. There is another rafter, a person who rides a raft. Same spelling, different job.
椽木；屋頂斜樑
組成From Old English ræfter, of Germanic origin, related to the origin of raft.
同家族的字
- raftsame old Germanic root; a raft floats, a rafter is a roof beam — related in history, not in meaning now
原始詞典資料7 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
Raftername
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A surname.
rafternoun詞源 1/ˈɹɑːftəː/
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architectureOne of a series of sloped beams that extend from the ridge or hip to the downslope perimeter or eave, designed to support the roof deck and its associated loads.
- […] the pigeons fluttered up to the rafters
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A flock of turkeys.
- A turkey will always seek the company of another turkey, and ultimately that of the rafter.
- the sons went off to share the trip to market - swarms of swine and rafters of turkeys - whilst the elders stayed behind to keep the house warm.
rafterverb詞源 1/ˈɹɑːftəː/
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To make (timber, etc.) into rafters.
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To furnish (a building) with rafters.
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agriculturebusinesslifestyleTo plough so as to turn the grass side of each furrow upon an unploughed ridge; to ridge.
rafternoun詞源 2/ˈɹɑːftəː/
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A raftsman.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。