noun
every single word and phrase; each and every word
Emphasizes thoroughness, often used when quoting, listening, or examining something without missing a single word.
彼のスピーチを一語一句聞き漏らさなかった。
I didn't miss a single word of his speech.
契約書の内容を一語一句確認してください。
Please check every single word of the contract.