Perfection (concept), a philosophical concept

Perfect interval, one of these music intervals:

Perfect number

Perfection (law), a legal concept

Perfect octave

Perfect, a Cathar priest

Perfect group

Perfect graph

Perfect fifth

Fungi in the Division Deuteromycota (informally called the Fungi imperfecti) are so classified because sexual reproduction is unknown (or may not occur) in these species.

Perfect unison

Perfect aspect, a grammatical concept

Perfect fourth

"Perfect" (Simple Plan song)

Perfect (Exceeder), a song by Mason vs. Princess Superstar

"Perfect" (Fairground Attraction song)

Perfect (band), a band from Poland

Perfect (Princess Superstar song), the original, unremixed, version of the aforementioned song

"Perfect" (Flyleaf song)

"Perfect" (Sara Evans song)

Perfect Developer, a tool for developing computer programs

Perfect Records, a record label

Perfect (film)

In botany and mycology, an organism is considered perfect if it is capable of sexual reproduction; otherwise it is imperfect.

A flower is called "perfect" (or synoecious) if it has both male and female reproductive parts. A perfect or hermaphroditic flower has both stamens and an ovary. If a flower has just male or just female parts it is termed 'imperfect'.