3-1-1
English
Proper noun
- (US, colloquial) A restriction on air travel in the United States, such that passengers may carry liquids on board as long as they are in 3.4-ounce containers that fit in a single 1-quart bag.
- (Canada, US, telephony) Alternative form of 311.
French
Proper noun
Spanish
Proper noun
- (US, Dominican Republic, telephony) alternative form of 311