Bedwars Lingo for Start of Game

At the Start of the game, you will want to know a couple of words that your partner might tell you. def usually is bed defense. When someone says Rush, they mean offense.
Bed defense Video:

Bedwars Lingo For during the Game

inc - incoming
NWF - Not Wool First (refers to bed defense)
ESLL - End Stone Last Layer (refers to bed defense)
WLL - Wool last layer (refers to bed defense)
1T - 1 Tap (When a player is at such low health that with one hit they are dead)
PGL - Pre-Game-Lobby (the area you are in before you select a game mode)