We found 11 dictionaries that define the word side door:

General (10 matching dictionaries)

1. side door: Merriam-Webster
2. side door: Oxford Learner's Dictionaries
3. side door: Collins English Dictionary
4. side door: Vocabulary.com
5. side-door: Wordnik
6. side door: Dictionary.com
7. side door: Rhymezone
8. side door: FreeDictionary.org
9. side door: Mnemonic Dictionary
10. side door: TheFreeDictionary.com

Slang (1 matching dictionary)

11. side door, the side door: Urban Dictionary

(Note: See side_doors as well.)

Definitions from WordNet (side door) ▸ noun:  an exterior door at one side of a building Phrases: side of a door, side member of a door or window frame, side of the door, more... ▸ Words similar to side door ▸ Usage examples for side door ▸ Idioms related to side door ▸ Wikipedia articles (New!) ▸ Words that often appear near side door ▸ Rhymes of side door ▸ Invented words related to side door