Definitions

1. noun

A notice or heading indicating that the person addressed should pay attention to or note something.

“The meeting notice included attn: All employees to the company-wide announcement.”

2. verb

To give attention to something or pay attention to a particular thing.

“She will attn the speaker’s speech at the conference.”

3. interjection

An expression used to draw attention or signal a message.

“Attn! There’s a fire in the building.”

4. abbreviation

Abbreviation for ‘attention’.

“The email was marked attn: Urgent.”