This term refers to a word used in a specific field.

Isonitrile is an old chemical term that is not used much nowadays.

He finished his meal, but there is still a lot left.

He is a person who doesn't talk much.

I will work using this laptop.

His smile was fake, as if he was hiding his true feelings.

How do you spend your spare time?

His confidence is excessively high.

I only have a little remainder from yesterday's shopping in my wallet.

This bread is not very delicious.