First in – GTO Wizard - Poker Glossary

The first player to voluntarily enter the pot is said to be "First In". There are two ways to do that: via open-raising or open-limping. These strategies are often mentioned in their abbreviated forms "RFI" and "LFI" respectively. RFI stands for 'Raise First In' and LFI is short for 'Limp First In'.

What is First in in poker?