decade /dekˈād, di-kādˈ, dekˈəd/ or (obsolete) decad /-ad/

1. A series of ten years
2. Any group or series of ten

decˈadal adjective

• opinionatedness
• opinionately
• opinionative
• opinionatively
• opinionativeness
• opinionator
• opinionators
• opinioned
• opinionist
• opinionists
• opinion poll
• opinion polls
• opinions
• opioid
• opioids
• opisometer
• opisometers
• opisth-
• opistho-
• opisthobranch
• Opisthobranchia
• opisthobranchs
• opisthocoelian
• opisthocoelous
• opisthodomoi