Here you will find one or more explanations in English for the word Rafter.
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Rafter
Rafter Raft"er, n.
A raftsman.
RafterRafter Raft"er, n. [AS. r[ae]fter; akin to E. raft, n. See
Raft.] (Arch.)
Originally, any rough and somewhat heavy piece of timber.
Now, commonly, one of the timbers of a roof which are put on
sloping, according to the inclination of the roof. See
Illust. of Queen-post.
[Courtesy] oft is sooner found in lowly sheds, With
smoky rafters, than in tapestry halls. --Milton. Rafter
Rafter Raft"er, v. t.
1. To make into rafters, as timber.
2. To furnish with rafters, as a house.
3. (Agric.) To plow so as to turn the grass side of each
furrow upon an unplowed ridge; to ridge. [Eng.]
Meaning of Rafter from wikipedia