引き合いに出す (translations)→ aforementioned include mention metaphor
確認する (translations)→ check claim conclude confirm decide find investigate recognize sure verify
主張 (translations)→ advocacy argument case idea insistence observation positive protestation statement
証言 (translations)→ account information recollection say story testimony
証言する (translations)→ attest finger open swear tell testify
証明する (translations)→ establish
請け合う (translations)→ assure guarantee promise reassurance
断言 (translations)→ affirmance declarative question word
断言する (translations)→ affirm maintain predicate
保証 (translations)→ certification