We found 13 dictionaries that define the word pioneers:

General (10 matching dictionaries)

1. pioneers: Merriam-Webster
2. pioneers: Collins English Dictionary
3. pioneers: Vocabulary.com
4. Pioneer's, Pioneers, pioneer's, pioneers: Wordnik
5. pioneers: Cambridge Advanced Learner's Dictionary
6. Pioneers, pioneers: Wiktionary
7. pioneers, the pioneers: Dictionary.com
8. pioneers: Cambridge Essential American English Dictionary
9. (Young) Pioneers, Pioneers (missions agency), Pioneers (song), Pioneers, The Pioneers (album), The Pioneers (band), The Pioneers (novel), The Pioneers (sculpture): Wikipedia, the Free Encyclopedia
10. pioneers: TheFreeDictionary.com

Business (1 matching dictionary)

11. pioneers: Legal dictionary

Computing (1 matching dictionary)

12. pioneers: Encyclopedia

Slang (1 matching dictionary)

13. pioneers: Urban Dictionary

(Note: See pioneer as well.)

Definitions from Wikipedia (Pioneers) ▸ noun:  a Christian missions organization focused on church planting among unreached people groups. Opposite: followers, traditionalists, conformists, laggards, successors Phrases: the pioneers, young pioneers, rochdale pioneers, pioneers day, Rochdale Society of Equitable Pioneers, more... Adjectives: early, other, american, many, first, great, few, hardy, old, young, true ▸ Words similar to pioneers ▸ Usage examples for pioneers ▸ Idioms related to pioneers ▸ Wikipedia articles (New!) ▸ Popular adjectives describing pioneers ▸ Words that often appear near pioneers ▸ Rhymes of pioneers ▸ Invented words related to pioneers