interior angle the angle inside two adjacent sides of a polygon
exterior angle the supplement of an interior angle of a polygon
intermingle mix or become mixed
interminable tiresomely long; seemingly without end
internal angle the angle inside two adjacent sides of a polygon
interpersonal occurring among or involving several people
interchange cause to change places
interior monologue a literary genre that presents a fictional character's sequence of thoughts in the form of a monologue
interestingly in an interesting manner
interchangeable permitting mutual substitution without loss of function
interrobang punctuation mark (‽) expressing an exclamation as a question
interfering intrusive in a meddling or offensive manner
endearingly in an adorable manner
wonderingly in a curious and questioning manner
enduringly in an enduring manner
enterprisingly in an enterprising manner
anterior naris either one of the two external openings to the nasal cavity in the nose
anteriorly in an anterior direction
entertainingly in an entertaining manner
acute triangle a triangle whose interior angles are all acute