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We found 26 dictionaries with English definitions that include the word lifeline:
Click on the first link on a line below to go directly to a page where "lifeline" is defined.

General (24 matching dictionaries)

1. lifeline: Merriam-Webster.com [home, info]
2. lifeline: Oxford Learner's Dictionaries [home, info]
3. lifeline: American Heritage Dictionary of the English Language [home, info]
4. lifeline: Collins English Dictionary [home, info]
5. lifeline: Vocabulary.com [home, info]
6. lifeline: Macmillan Dictionary [home, info]
7. Lifeline, lifeline: Wordnik [home, info]
8. lifeline: Cambridge Advanced Learner's Dictionary [home, info]
9. lifeline: Wiktionary [home, info]
10. lifeline: Webster's New World College Dictionary, 4th Ed. [home, info]
11. lifeline: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. lifeline: Infoplease Dictionary [home, info]
13. lifeline: Dictionary.com [home, info]
14. lifeline: UltraLingua English Dictionary [home, info]
15. lifeline: Cambridge Dictionary of American English [home, info]
16. LifeLine (medical transport), Lifeline (Ben Harper album), Lifeline (Brooke Fraser song), Lifeline (Crisis Support Service), Lifeline (EP), Lifeline (FCC program), Lifeline (G.I. Joe), Lifeline (Iris DeMent album), Lifeline (Jamiroquai song), Lifeline (Neal Morse album), Lifeline (Pablo Cruise album), Lifeline (Papa Roach song), Lifeline (Roy Ayers album), Lifeline (Spandau Ballet song), Lifeline (Stargate Atlantis), Lifeline (TV series), Lifeline (album), Lifeline (crisis support service), Lifeline (diving), Lifeline (film), Lifeline (safety), Lifeline (ship), Lifeline (video game), Lifeline (web series), Lifeline: Wikipedia, the Free Encyclopedia [home, info]
17. lifeline: Rhymezone [home, info]
18. lifeline: Free Dictionary [home, info]
19. lifeline: Mnemonic Dictionary [home, info]
20. lifeline: WordNet 1.7 Vocabulary Helper [home, info]
21. lifeline: LookWAYup Translating Dictionary/Thesaurus [home, info]
22. lifeline: Dictionary/thesaurus [home, info]

Computing (1 matching dictionary)

23. lifeline: Encyclopedia [home, info]

Slang (1 matching dictionary)

24. Lifeline: Urban Dictionary [home, info]

(Note: See lifelines for more definitions.)

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (lifeline) ▸ noun:  line thrown from a vessel that people can cling to in order to save themselves from drowning ▸ noun:  line that raises or lowers a deep-sea diver ▸ noun:  support that enables people to survive or to continue doing something (often by providing an essential connection) ("The airlift provided a lifeline for Berlin") ▸ noun:  a crease on the palm; its length is said by palmists to indicate how long you will live ▸ Also see lifelines ▸ Words similar to lifeline ▸ Usage examples for lifeline ▸ Idioms related to lifeline (New!) ▸ Popular adjectives describing lifeline ▸ Words that often appear near lifeline ▸ Rhymes of lifeline ▸ Invented words related to lifeline