He lost everything.

She is planning a date with her current boyfriend.

Everyone was surprised by the news.

My boyfriend gave me a gift.

He is a perfectionist, and his approach to work is very strict.

He is immersed in the study of panmagic squares.

His performance was perfect and without blemish.

In mathematics, a perfect number refers to a number where the sum of its divisors, excluding the number itself, equals the number.

This fish is completely farmed, and no capture is done in the natural environment.

This programming language is said to be Turing complete.