If you’re new to playing online, some of the lingo may be confusing to you. Here it is if you’re out of the loop:
Virtual Tabletop: An all-in-one software for using the internet to play tabletop RPGs.
Token: This is like a miniature, but online. It’s usually a circular portrait or a top-down view of a character or monster.
Automation: This is where a piece of software takes care of some part of a game, such as the math, die rolling, advancing the turn order, or checking a roll for success/failure.
Chat Command: A chat command is a way to interact with the program and tell it to do something by typing a special command into the chat box. This is often used to initate die rolls with a prefix followed by the dice number and type. Ex: /r 4d6 would roll 4 six-sided dice.
Macros: Macros are instructions for the program to complete some multi-step task (such as rolling for attack and then damage) saved as a one-step chat command or clickable button, so you can save time. Macros can be super simple or very elaborate.
Simple Fog of War: This is a function that hides a part of or the whole map from the players, which the gm can usually reveal by clicking and dragging across the area. Think of it like putting pieces of paper over your IRL dungeon map and then slowly moving/removing them as the players advance through the dungeon.
RTS-Style Fog of War: This is a version of fog of war where the player has a field of vision around their character that they can see, and as they move around the map they can only (and always) see what’s in their field of vision. This can be combined with walls for Dynamic Lighting/Line of Sight.
Dynamic Lighting/Line of Sight: This features allows you to draw invisible walls on your map which the players cannot see through. You set up each player’s token with how far they can see, and sometimes you can even give them different kinds of light (torch, lamp, etc) and put lights in certain rooms. Then, when the player moves their token around, their view of the battlemap changes to reflect what their character can see.
SRD: System Reference Document. This is usually the core rules of an RPG that are released for free.