perfect

(grammar) The perfect tense, or a form in that tense.

A perfect score; the achievement of finishing a stage or task with no mistakes.

Fitting its definition precisely.

“a perfect circle”

Having all of its parts in harmony with a common purpose.

“That bucket with the hole in the bottom is a poor bucket, but it is perfect for watering plants.”

Without fault or mistake; thoroughly skilled or talented.

“Practice makes perfect.”

Excellent and delightful in all respects.

“a perfect day”

Of a number: equal to the sum of its proper divisors.

“6 is perfect because the sum of its proper divisors, 1, 2, and 3, which is 6, is equal to the number itself.”

(grammar, of a tense or verb form) Representing a completed action.

Sexually mature and fully differentiated.

Of flowers, having both male parts (stamens) and female parts (carpels).

Of a set: 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.

(of a cocktail) Made with equal parts of sweet and dry vermouth.

“a perfect Manhattan; a perfect Rob Roy”

Well informed; certain; sure.

Innocent, guiltless.

To make perfect; to improve or hone.

“I am going to perfect this article.”

To take an action, usually the filing of a document in the correct venue, that secures a legal right.

“perfect an appeal; perfect an interest; perfect a judgment”