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 flatline: noun:   An unchanging state, as indicated in a graph of a variable over time. noun:   The disappearance of the rhythmic peaks displayed on a heart monitor. noun:   The disappearance of brain waves on an electroencephalogram. verb:   (intransitive, of the heart) To stop beating. verb:   (intransitive, by extension) To die. verb:   (transitive, slang) To kill. verb:   To stay at the same level, without development; or, to fall. (Definitions from Wiktionary) Related words... Descriptive words...   Help  Feedback  Privacy  Terms of Use Copyright © 2023