We found 21 dictionaries that define the word walls:

General (12 matching dictionaries)

1. walls: Merriam-Webster
2. walls: Collins English Dictionary
3. walls: Vocabulary.com
4. Wall's, Walls, wall's, walls: Wordnik
5. walls: Cambridge Advanced Learner's Dictionary
6. Walls, walls: Wiktionary
7. walls: Dictionary.com
8. walls: Cambridge Essential American English Dictionary
9. The Walls (song), The Walls, WALLS (album), WALLS, Wall's (ice cream), Wall's (meat), Walls (Apparat album), Walls (Barbra Streisand album), Walls (Circus), Walls (EP), Walls (Icehouse song), Walls (Kings of Leon album), Walls (Kings of Leon song), Walls (Louis Tomlinson album), Walls (Louis Tomlinson song), Walls (Yes song), Walls (astronomy), Walls (surname), Walls: Wikipedia, the Free Encyclopedia
10. Walls: Rhymezone
11. walls: TheFreeDictionary.com
12. walls: Wikimedia Commons US English Pronunciations

Business (1 matching dictionary)

13. walls: Legal dictionary

Computing (1 matching dictionary)

14. walls: Encyclopedia

Medicine (2 matching dictionaries)

15. walls: Merriam-Webster Medical Dictionary
16. walls: Medical dictionary

Miscellaneous (2 matching dictionaries)

17. Brilliant Dream Dictionary (No longer online)
18. walls: Idioms

Religion (1 matching dictionary)

19. Walls: Smith's Bible Dictionary

Slang (1 matching dictionary)

20. walls, the walls: Urban Dictionary

Sports (1 matching dictionary)

21. Walls: Sports Definitions

(Note: See wall as well.)

Definitions from Wiktionary (Walls) ▸ noun:  (US, slang) The vagina. ▸ noun:  A surname. Similar: rampart, paries, bulwark, palisade, fence, fence in, surround, ceiling, floor, doorway, more... Opposite: openness, freedom, space, boundaryless, unlimited Types: brick, concrete, drywall, stone, wood, plaster, glass, metal, more... Phrases: cell walls, stone walls, walls in, city walls, side walls, more... Adjectives: high, thick, outer, white, old, thin, exterior, interior, concrete, inner, massive ▸ Words similar to walls ▸ Usage examples for walls ▸ Idioms related to walls ▸ Wikipedia articles (New!) ▸ Popular adjectives describing walls ▸ Words that often appear near walls ▸ Rhymes of walls ▸ Invented words related to walls