Fitting its definition precisely.
Having all of its parts in harmony with a common purpose.
Without fault or mistake; without flaw, of supreme quality.
Without fault or mistake; without flaw, of supreme quality.
Without fault or mistake; without flaw, of supreme quality.
Without fault or mistake; without flaw, of supreme quality.
(obsolete) Without fault or mistake; without flaw, of supreme quality.
Excellent and delightful in all respects.
Morally or spiritually immaculate or ideal.
Representing a completed action.
Sexually mature and fully differentiated.
Having both male parts (stamens) and female parts (carpels).
Equal to the sum of its proper divisors.
Equal to its set of limit points, i.e. set A is perfect if A=A'.
Describing an interval or any compound interval of a unison, octave, or fourths and fifths that are not tritones.
Made with equal parts of sweet and dry vermouth.
(obsolete) Well informed; certain; sure.
(obsolete) Innocent, guiltless; without blemish.
(obsolete) Sane, of sound mind.

(transitive) To make perfect; to improve or hone.
To take an action, usually the filing of a document in the correct venue, that secures a legal right.

perfecter

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