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We found 36 dictionaries with English definitions that include the word pioneer:
Click on the first link on a line below to go directly to a page where "pioneer" is defined.

General (31 matching dictionaries)

1. pioneer: Merriam-Webster.com [home, info]
2. Pioneer, pioneer: Oxford Dictionaries [home, info]
3. pioneer: American Heritage Dictionary of the English Language [home, info]
4. pioneer: Collins English Dictionary [home, info]
5. pioneer: Vocabulary.com [home, info]
6. pioneer, pioneer: Macmillan Dictionary [home, info]
7. Pioneer, pioneer: Wordnik [home, info]
8. pioneer: Cambridge Advanced Learner's Dictionary [home, info]
9. Pioneer: Wiktionary [home, info]
10. pioneer: Webster's New World College Dictionary, 4th Ed. [home, info]
11. pioneer: The Wordsmyth English Dictionary-Thesaurus [home, info]
12. pioneer: Infoplease Dictionary [home, info]
13. Pioneer, pioneer: Dictionary.com [home, info]
14. pioneer: Online Etymology Dictionary [home, info]
15. Pioneer, pioneer: UltraLingua English Dictionary [home, info]
16. pioneer: Cambridge Dictionary of American English [home, info]
17. Pioneer (Amtrak), Pioneer (Pioneer album), Pioneer (The Band Perry album), Pioneer (The Maine album), Pioneer (Tuas), Pioneer (album), Pioneer (band), Pioneer (company), Pioneer (film), Pioneer (locomotive), Pioneer (military), Pioneer (schooner), Pioneer (song), Pioneer (submarine), Pioneer (train), Pioneer (video game), Pioneer, The Pioneer(daily), The Pioneer (India), The Pioneer (Indian newspaper), The Pioneer (daily), The Pioneer (newspaper), The Pioneer (painting), The Pioneer (sculpture): Wikipedia, the Free Encyclopedia [home, info]
18. Pioneer: Online Plain Text English Dictionary [home, info]
19. pioneer: Webster's Revised Unabridged, 1913 Edition [home, info]
20. pioneer: Rhymezone [home, info]
21. pioneer: AllWords.com Multi-Lingual Dictionary [home, info]
22. pioneer: Webster's 1828 Dictionary [home, info]
23. Pioneer: Encarta® Online Encyclopedia, North American Edition [home, info]
24. Pioneer: 1911 edition of the Encyclopedia Britannica [home, info]
25. pioneer: Free Dictionary [home, info]
26. pioneer: Mnemonic Dictionary [home, info]
27. pioneer: WordNet 1.7 Vocabulary Helper [home, info]
28. pioneer: LookWAYup Translating Dictionary/Thesaurus [home, info]
29. pioneer: Dictionary/thesaurus [home, info]

Art (1 matching dictionary)

30. Pioneer: Glossary of Stamp Collecting Terms [home, info]

Business (1 matching dictionary)

31. pioneer: Legal dictionary [home, info]

Computing (1 matching dictionary)

32. pioneer: Encyclopedia [home, info]

Slang (1 matching dictionary)

33. The Pioneer, pioneer: Urban Dictionary [home, info]

Sports (1 matching dictionary)

34. Pioneer: Sports Definitions [home, info]

Quick definitions from Macmillan ( ) Provided by Quick definitions from WordNet (pioneer) ▸ noun:  one the first colonists or settler in a new territory ("They went west as pioneers with only the possessions they could carry with them") ▸ noun:  someone who helps to open up a new line of research or technology or art ▸ verb:  open up and explore a new area ("Pioneer space") ▸ verb:  open up an area or prepare a way ("She pioneered a graduate program for women students") ▸ verb:  take the lead or initiative in; participate in the development of ("This South African surgeon pioneered heart transplants") ▸ Word origin ▸ Words similar to pioneer ▸ Usage examples for pioneer ▸ Popular adjectives describing pioneer ▸ Words that often appear near pioneer ▸ Rhymes of pioneer ▸ Invented words related to pioneer