We found 30 dictionaries that define the word grouping:

General (24 matching dictionaries)

1. grouping: Merriam-Webster
2. grouping: Oxford Learner's Dictionaries
3. grouping: American Heritage Dictionary of the English Language
4. grouping: Collins English Dictionary
5. grouping: Vocabulary.com
6. Grouping, grouping: Wordnik
7. grouping: Cambridge Advanced Learner's Dictionary
8. grouping: Wiktionary
9. grouping: Webster's New World College Dictionary, 4th Ed.
10. grouping: Infoplease Dictionary
11. Grouping, grouping: Dictionary.com
12. grouping: Cambridge Essential American English Dictionary
13. Grouping (firearms): Wikipedia, the Free Encyclopedia
14. Grouping: Online Plain Text English Dictionary
15. grouping: Webster's Revised Unabridged, 1913 Edition
16. grouping: Rhymezone
17. Grouping: AllWords.com Multi-Lingual Dictionary
18. grouping: Webster's 1828 Dictionary
19. grouping: FreeDictionary.org
20. grouping: Mnemonic Dictionary
21. grouping: TheFreeDictionary.com
22. grouping: Longman Dictionary of Contemporary English

Business (2 matching dictionaries)

23. Grouping: Management Dictionary
24. grouping: Legal dictionary

Computing (1 matching dictionary)

25. grouping: Encyclopedia

Medicine (1 matching dictionary)

26. grouping: Medical dictionary

Miscellaneous (1 matching dictionary)

27. grouping: Idioms

Science (1 matching dictionary)

28. Archaeology Wordsmith (No longer online)

(Note: See group as well.)

Definitions from Wiktionary ( ) ▸ noun:  (countable) A collection of things or people united as a group. ▸ noun:  (countable, uncountable) Combining into groups. ▸ noun:  Shot grouping. Similar: pigeonholing, gathering, congregation, cluster, ensemble, gaggle, pack, bundling, aggregation, collection, more... Opposite: separating, dividing, dispersing, splitting, isolating Types: set, category, class, collection, family, series, order, kind, more... Phrases: ability grouping, blood grouping, heterogeneous grouping, perceptual grouping, family grouping, more... Adjectives: social, homogeneous, regional, political, heterogeneous, natural, logical, particular, perceptual, larger, economic Colors:     blue,     green,     red,     yellow,     orange, more... ▸ Words similar to grouping ▸ Usage examples for grouping ▸ Idioms related to grouping ▸ Wikipedia articles (New!) ▸ Popular adjectives describing grouping ▸ Words that often appear near grouping ▸ Rhymes of grouping ▸ Invented words related to grouping