Word:    Find rhymes Find rhymes (advanced) Find near rhymes Find synonyms Find descriptive words Find phrases Find antonyms Find definitions Find related words Find similar sounding words Find similarly spelled words Find homophones Find phrase rhymes Match consonants only Match these letters Find anagrams (unscramble) Definitions of half life: noun:   the time required for something to fall to half its initial value (in particular, the time for half the atoms in a radioactive substance to disintegrate) Related words...   Help  Feedback  Privacy  Terms of Use Copyright © 2023