We found 21 dictionaries that define the word mouthing:

General (15 matching dictionaries)

1. mouthing: Merriam-Webster
2. mouthing: American Heritage Dictionary of the English Language
3. mouthing: Collins English Dictionary
4. mouthing: Vocabulary.com
5. Mouthing, mouthing: Wordnik
6. mouthing: Cambridge Advanced Learner's Dictionary
7. mouthing: Wiktionary
8. Mouthing, mouthing: Dictionary.com
9. mouthing: Cambridge Essential American English Dictionary
10. Mouthing: Wikipedia, the Free Encyclopedia
11. Mouthing: Online Plain Text English Dictionary
12. Mouthing: AllWords.com Multi-Lingual Dictionary
13. mouthing: Webster's 1828 Dictionary
14. mouthing: FreeDictionary.org
15. mouthing: TheFreeDictionary.com

Business (1 matching dictionary)

16. mouthing: Legal dictionary

Computing (1 matching dictionary)

17. mouthing: Encyclopedia

Medicine (2 matching dictionaries)

18. mouthing: Merriam-Webster Medical Dictionary
19. mouthing: Medical dictionary

Miscellaneous (1 matching dictionary)

20. mouthing: Idioms

Slang (1 matching dictionary)

21. Mouthing: Urban Dictionary

(Note: See mouth as well.)

Definitions from Wiktionary (mouthing) ▸ noun:  The act of forming a shape with the mouth, especially as part of sign language. ▸ noun:  Ranting; passionate speech devoid of meaning. Similar: sass, talk, utter, mouthpiece, speak, backtalk, verbalize, lip, oral cavity, chew, more... Opposite: silence, quiet, stillness, mute Phrases: mouthing off, bad mouthing, mouthing off at, poor mouthing, fish mouthing, more... Adjectives: bad, poor, mere, much, empty, silent, constant, indiscriminate, smart, rhythmical, self ▸ Words similar to mouthing ▸ Usage examples for mouthing ▸ Idioms related to mouthing ▸ Wikipedia articles (New!) ▸ Popular adjectives describing mouthing ▸ Words that often appear near mouthing ▸ Rhymes of mouthing ▸ Invented words related to mouthing