同義語|どうぎごdougigo[0]heiban (flat)

1. nounsynonym

• SynonymシノニムWrittenWritten/formal prose. Loanword for synonym; in biology it also means several scientific names for one taxon. Academic flavour.
• Synonym類義語るいぎごWrittenWritten/formal prose. Words of similar rather than identical meaning; broader than 「同義語」, taking in near-synonyms. Common in dictionaries.
• Synonym同意語どういごNeutralNeutral. Words with the same or nearly the same meaning; essentially a synonym of 「同義語」 and freely interchangeable with it.
• Related類語るいごNeutralNeutral. Words of similar meaning, as in 「類語辞典」; close to 「類義語」. Unlike 「同義語」, which is for words with the same meaning.
• Antonym反義語はんぎごWrittenWritten/formal prose. Words with opposite meanings — the counterpart of 「同義語」; it means the same as 「対義語」.
• Antonym対義語たいぎごNeutralNeutral. Words that stand opposite or in pairs, like 「長い」 and 「短い」; the counterpart of 「同義語」.

Use 「同義語」 by default for words of the same meaning; 「同意語」 is interchangeable. For words that are merely similar, use 「類義語」 (written) or 「類語」, as in 「類語辞典」. 「シノニム」 is an academic loanword. For opposites, use 「対義語」 or 「反義語」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 発音はつおん・表記ひょうきなどは異ことなるが意味いみが同おなじである語ごのこと。同意語どういごともいう。