unknown word; unknown language
Refers to a word or language that is not known or recognized, often used in linguistics, language learning, or NLP contexts.
テキストに未知語が含まれていると、読解が難しくなる。
When the text contains unknown words, reading comprehension becomes difficult.
未知
We practiced guessing the meaning of unknown words from context.
Compound of 未知 (michi, 'unknown') and 語 (go, 'word' or 'language').