perfect, prefect

Perfect or perfect means absolutely beyond improvement; faultless--
Her performance was perfect; the judges gave her a "10".
No, don't change a thing; this is perfect just the way it is.

Perfect also means comforming absolutely to a description or definition--
A perfect circle is made of points equidistant from the center.
He made a perfect fool of himself.

Perfect may also be a verb ( action word ), meaning to inprove or to make  faultless--
He is out practicing, hoping to perfect his golf swing.
With a bit of experience, you may perfect your aim.

Prefect or prefect means a person in a position of authority, as a magistrate in ancient Rome, or a French government official, or the dean of a Jesuit college--
They were summoned to the office of the prefect, who threatened to expell them.
The prefect of police charged them with making a public disturbance.

Now that you know that, you can say--
"The prefect congratulated the student on his perfect attendance."

Note--"perfect" is an absolute. Something is either perfect, or it is not perfect, or imperfect. Something may be close to perfect, or far from perfect, but there is no comparitive ( cold, colder ) or superlative ( cold, coldest ) form of perfect--
That's close enough to perfect for me.
This is far from perfect, but it will have to do.