1. Eurasian annual sprawling plant naturalized throughout North America
   - Arenaria serpyllifolia

Type of: sandwort

• oboe d'amore
• oboe da caccia
• oboist
• obolus
• obovate
• obovate leaf
• obscene
• obscenely
• obscenity
• obscurantism
• obscurantist
• obscuration
• obscure
• obscurely
• obscureness
• obscurity
• obsecrate
• obsequious
• obsequiously
• obsequiousness
• obsequy
• observable
• observably
• observance
• observant