He was criticized for having a double standard.

These shoes have a double sole and are very durable.

His sword had a two-character inscription.

Binomial nomenclature plays an important role in biological taxonomy.

The iteration mark 〻 is frequently used in this ancient document.

We booked a double room.

Doublet is an important concept in linguistics.

I overslept today, so I was late.

He accepted the proposal without dispute.

He holds dual citizenship in America and Japan.