| Alliance | Agreement that stops two players from attacking each other. Lasts 5 minutes by default. |
| Atom bomb | Small nuclear weapon, launched from a silo. |
| Attack slider | Share of your troops sent with each attack. |
| Bot | See tribe. |
| Capital | Nations mode: a city on the country's real capital, +10% gold and troop growth. |
| Coalition | Nations mode: the AI nations ally against a player holding 30% of the land. |
| Defense post | Building that strengthens the border around it. |
| ELO | Ranked skill rating. |
| Embargo | Stopping trade with a player. |
| EMP | Bomb that does no damage but switches off nearby enemy defences and buildings for 15 seconds. |
| Fallout | Effect of a bomb on the ground: the land is harder to retake. |
| Final phase | At 1 h 30: troops and gold increased for everyone; end at 2 h. |
| Hydrogen bomb | Nuclear weapon much bigger than the atom bomb. |
| MIRV | The biggest weapon: splits into many warheads on the targeted player. |
| Nation | Country played by the AI, or a player of Nations mode. |
| Objective | Map zone to hold for a bonus (or to win in Conquest). |
| Perjury | Breaking a peace treaty: traitor mark and penalties. |
| Placement games | The first 5 ranked games, before the tier is given. |
| Radar | Spots boats, warships and missiles within its range. |
| SAM | Surface-to-air missile launcher that shoots down enemy missiles. |
| Season | Three-month Ranked period (one month for clans). |
| Silo | Building that launches nuclear weapons. |
| Traitor | Player who broke an alliance or peace: 30 seconds of icon and reduced defence. |
| Tribe | Small AI opponent, with no alliances. |
| Vassal | Nations mode: player who surrendered to another and pays them 25% of their gold income. |
| Versus | Team mode (1v1 to 4v4) on tournament maps. |
| Victory threshold | Share of the land you must own to win (80% or 50%). |
| Wave | Survival mode: a landing of AI invaders. |
