We found 32 dictionaries that define the word stair:

General (27 matching dictionaries)

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

Computing (1 matching dictionary)

26. stair: Encyclopedia

Miscellaneous (2 matching dictionaries)

27. Sound-Alike Words (No longer online)
28. STAIR: Acronym Finder

Slang (1 matching dictionary)

29. stair: Green’s Dictionary of Slang

Tech (1 matching dictionary)

30. Urban Conservation Glossary (No longer online)

(Note: See stairs as well.)

Definitions from Wiktionary ( ) ▸ noun:  A single step in a staircase. ▸ noun:  A series of steps; a staircase. ▸ noun:  A surname. Similar: step, stairway, staircase, stepway, stairwell, half space, stile, doorstep, step ladder, stairtower, more... Opposite: escalator, elevator Types: straight, spiral, double helix, more... Phrases: stair climbing, stair landing, stair rail, stair tower, stair step, more... Adjectives: narrow, spiral, top, bottom, steep, wooden, broad, outside, long, dark, main Colors:     gray,     brown,     beige,     white,     black, more... ▸ Word origin ▸ Words similar to stair ▸ Usage examples for stair ▸ Idioms related to stair ▸ Wikipedia articles (New!) ▸ Popular adjectives describing stair ▸ Words that often appear near stair ▸ Rhymes of stair ▸ Invented words related to stair