noun
many words; a great number of words
Used to emphasize a large quantity of words, often in contexts like explanations, complaints, or descriptions. Not a precise count; conveys 'so many words' or 'a thousand words' worth of talk'.
彼の説明は千言を費やしたが、結局何も伝わらなかった。
His explanation used a thousand words, but in the end nothing got across.
千言を尽くしてもこの美しさは表せない。
Even if I exhaust a thousand words, I cannot express this beauty.