1. (informal) a very small town with few facilities

Derived forms: one-horse towns

• Oort
• Oort cloud
• oosphere
• oospore
• ootid
• ooze
• ooze leather
• ooze out
• ooze through
• oozing
• oozy
• op
• op art
• op shop
• op-ed
• op. cit.
• opacification
• opacify
• opacity
• opah
• opal
• opal glass
• opalesce
• opalescence
• opalescent