Linguists debated whether onlys could function as nouns in some dialects.

She kept a drawer filled with letters from her one and onlies, the people who had once been her whole world.

The freight-only branch line connects the port to the national rail network, bypassing passenger stations along the way.

The configuration file is read-only to prevent accidental changes during updates.

Abstinence only is promoted by some groups as the best way to prevent teen pregnancy and sexually transmitted diseases, but critics argue it fails to provide necessary information.

As an only child, Maya learned to entertain herself with books and music.

Only children often develop close friendships with cousins to make up for not having siblings.

I only just found out about the meeting.

The device uses a write-only register to store security tokens, preventing any process from reading them.

The invitation clearly printed 'regrets only' beside the RSVP line.