1. Software that is notionally free, but which contains paid advertising

Encyclopedia: Adware

• overproduction
• overproof
• overprotect
• overprotection
• overprotective
• overproud
• overqualified
• overrate
• overrating
• overreach
• overreaching
• overreact
• overreaction
• overreckoning
• overrefine
• overrefined
• overrefinement
• override
• overriding
• overripe
• overrule
• overrun
• oversea
• overseas
• overseas cap