XM stands for “Exotic Matter”. XM is represented as glowing blue dots throughout the world.

Media is a special drop obtained by hacking a portal. It will generally be an image of a picture or document, or a video file.

A Portal is a “gateway” established by the shapers, and is used to create links and fields.

The Capsule is a rare container that can be loaded with multiple inventory items, which can be dropped on the ground to bulk transfer items between Agents.

A resonator is a device used by both factions to control the portals. In order for any player to "own" or capture a portal, they must place down at least one resonator.

XMP Bursters are offensive weapons used against opposing faction portals. A burster will always be fired from the point where you are standing.

A portal mod is an additional item you can add to a portal to defend it or change its behaviour.

A link is a line between two portals, connecting them.

A portal key is a device that allows you to view a specific portal that has been hacked into. It will only access the portal from which it was retrieved.

A control field is an area of coverage made up by (exactly) three connected links to control/protect “Mind Units” contained within the field. How many “Mind Units” are determined by the area of the field and the population density within that field.