'Hot' and 'cold' are antonyms.

His criminal act was revealed by the police.

His skills are really not fragmentary.

His room is full of fragments of things.

He was plotting a rebellion against the king.

I bought new gaiters for mountain climbing.

He likes to take a walk in the park at dusk.

He understands the meaning of the proverb 'Teaching is half learning', which means that teaching leads to one's own learning.

We should always remember the power of Kannon in difficult times.

This shape is an antiprism.