Definitions

1. noun

A fee or payment, especially a small one.

“The pub charged a fi of 50 cents per drink.”

2. noun

A financial transaction, especially one that is small or informal.

“The fi was made in cash, and the money was split between the friends.”

3. verb

to pay or give a small fee, especially for a drink or service.

“She fi-ed the bartender for a round of drinks.”