0 to fire a shot from a gun:
They fired off several shots to frighten us.
1 to write and send an angry letter to someone:
He fired off an angry letter to the editor.
2 to quickly write and send a message, letter, etc.:
He can fire off an email with a question and usually get an answer within a few hours.
She fired off an angry letter to staff warning them not to "bad-mouth" colleagues.
NIEUWE WOORDEN
European
May 10, 2021
WOORD VAN DE DAG
Shimmer
fire sth off