We found 25 dictionaries that define the word doohickey:

General (22 matching dictionaries)

1. doohickey: Merriam-Webster
2. doohickey: Oxford Learner's Dictionaries
3. doohickey: American Heritage Dictionary of the English Language
4. doohickey: Collins English Dictionary
5. doohickey: Vocabulary.com
6. doohickey: Wordnik
7. doohickey: Cambridge Advanced Learner's Dictionary
8. doohickey: Wiktionary
9. doohickey: Webster's New World College Dictionary, 4th Ed.
10. doohickey: The Wordsmyth English Dictionary-Thesaurus
11. doohickey: Infoplease Dictionary
12. doohickey: Dictionary.com
13. doohickey: Cambridge Essential American English Dictionary
14. Doohickey: Wikipedia, the Free Encyclopedia
15. doohickey: Rhymezone
16. doohickey: FreeDictionary.org
17. doohickey: Mnemonic Dictionary
18. doohickey: TheFreeDictionary.com
19. Doohickey: World Wide Words
20. doohickey: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

21. Construction Term Glossary (No longer online)

Computing (1 matching dictionary)

22. doohickey: Encyclopedia

Slang (1 matching dictionary)

23. doohickey: Green’s Dictionary of Slang

(Note: See doohickeys as well.)

Definitions from Wiktionary ( ) ▸ noun:  (slang, originally US) A thing (used in a vague way to refer to something whose name one does not know or cannot recall) Similar: thingummy, thingumabob, thingmajig, dohickey, doodad, thingumajig, thingamabob, dojigger, thingamajig, thingmabob, more... ▸ Words similar to doohickey ▸ Usage examples for doohickey ▸ Idioms related to doohickey ▸ Wikipedia articles (New!) ▸ Popular adjectives describing doohickey ▸ Words that often appear near doohickey ▸ Rhymes of doohickey ▸ Invented words related to doohickey