aren't /ärnt/ contraction of are not or (informal, as interrogative) am not

• oozinesses
• oozing
• oozy
• o/p
• op
• OP
• opacities
• opacity
• opacous
• opah
• opahs
• opal
• opaled
• opalescence
• opalescences
• opalescent
• opal glass
• opal glasses
• opaline
• opalines
• opalised
• opalized
• opals
• opaque
• opaqued