What does 命 mean?
命 is a Japanese noun meaning “one's life, life force” in English. It can also be translated as “lifespan, one's core” depending on context. It is written as 命 in kanji, いのち in hiragana, and inochi in romaji. This word is part of JLPT N3 vocabulary.
Example sentence
その犬は少女の命を救った。
The dog saved the girl's life.