We found 27 dictionaries that define the word wake up:

General (21 matching dictionaries)

1. wake up: Longman Dictionary of Contemporary English
2. wake-up: Oxford Learner's Dictionaries
3. wake-up: Collins English Dictionary
4. wake up: Vocabulary.com
5. Wake-Up, Wake-up, wake-up: Wordnik
6. Wake up, wake (sb) up, wake up: Cambridge Advanced Learner's Dictionary
7. wake-up, wake up: Wiktionary
8. wake-up: Webster's New World College Dictionary, 4th Ed.
9. wake-up: Infoplease Dictionary
10. wake-up, wake up: Dictionary.com
11. wake-up: Cambridge Essential American English Dictionary
12. Wake UP, Wake Up (Agents of S.H.I.E.L.D.), Wake Up (Anthony Neely album), Wake Up (Arcade Fire song), Wake Up (BTS album), Wake Up (Eliot song), Wake Up (Hilary Duff song), Wake Up (Make a Move), Wake Up (Rage Against the Machine song), Wake Up (Shalamar album), Wake Up (Suicide Silence EP), Wake Up (Suicide Silence song), Wake Up (Supergirl), Wake Up (Sway EP), Wake Up (TV program), Wake Up (TV series), Wake Up (The Vamps album), Wake Up (The Vamps song), Wake Up (Travis Scott song), Wake Up (XTC song), Wake Up (Youngblood Hawke album), Wake Up (disambiguation), Wake Up, Wake-up, Wake up: Wikipedia, the Free Encyclopedia
13. wake up: Rhymezone
14. wake up: Phrasal Verb Page
15. wake up: FreeDictionary.org
16. wake up: Mnemonic Dictionary
17. wake-up, wake up: TheFreeDictionary.com
18. wake-up: Collins English Dictionary
19. wake-up, wake up: Merriam-Webster

Business (1 matching dictionary)

20. Wake-up, wake up: Legal dictionary

Computing (1 matching dictionary)

21. Wake-up, wake up: Encyclopedia

Medicine (1 matching dictionary)

22. Wake-up: Medical dictionary

Miscellaneous (1 matching dictionary)

23. wake up: Idioms

Slang (2 matching dictionaries)

24. wake up: Green’s Dictionary of Slang
25. wake-up, wake up, wake up (make a move): Urban Dictionary

(Note: See wake_ups as well.)

Definitions from Wiktionary (wake up) ▸ verb:  (intransitive) To stop sleeping; to awake. ▸ verb:  (transitive) To awaken somebody. ▸ verb:  (intransitive) To become more aware of a real-life situation; to concentrate on the matter in hand. Similar: waken, wake, awaken, arouse, come alive, awake, rouse, unsleep, unbed, rest, more... Opposite: fall asleep, go to sleep, nod off Types: alarm clock, snooze button, coffee, tea, energy drink, yawn, stretch, more... Phrases: wake up call, wake up signal, wake up and smell the coffee, wake up calls, wake up to, more... Adjectives: awake, dight, waker, put out, utter, out, over, exarate, pop-up, elongate, outer ▸ Words similar to wake up ▸ Usage examples for wake up ▸ Idioms related to wake up ▸ Wikipedia articles (New!) ▸ Words that often appear near wake up ▸ Rhymes of wake up ▸ Invented words related to wake up