something a little different from others of the same type; "an experimental version of the night fighter"; "a variant of the same word"; "an emery wheel is the modern variation of a grindstone"; "the boy is a younger edition of his father"同じ種類のものだが、他と少し違うもの異形
例:an experimental version of the night fighter 夜間戦闘機の実験機種
a mental representation of the meaning or significance of something何かの意味または重要性の心的表現通解
a written work (as a novel) that has been recast in a new form; "the play is an adaptation of a short novel"新しい形で作り直された(小説のような)著作物翻案
a written communication in a second language having the same meaning as the written communication in a first language第一の言語の文書によるコミュニケーションと同じ意味を持つ第二の言語の文書によるコミュニケーション講読