1. Relating to the firmament or upper regions

See also: firmament

• impressment
• imprest
• imprimatur
• imprimis
• imprint
• imprinting
• imprison
• imprisoned
• imprisonment
• impro
• improbability
• improbable
• improbableness
• improbably
• improbity
• impromptu
• improper
• improper fraction
• improperly
• improperness
• impropriety
• improv
• improvability
• improvable
• improve