noun
synonym; similar word
Linguistics term for words with similar meanings. Often contrasted with 同義語 (strict synonym).
See also: 同義語
「美しい」と「きれい」は類義語です。
"Utsukushii" and "kirei" are synonyms.
類義語辞典で適切
I looked for an appropriate expression in a thesaurus.
対義語 means antonym, the opposite of 類義語.
Compound of 類 (kind, sort) + 義 (meaning) + 語 (word). A straightforward kanji-based term for 'similar-meaning word'.