# Glossary

Source page: https://wos.sheet.guide/en/guides/glossary  
Last checked: 17 Oct 2026  
Unofficial fan site, not affiliated with Century Games. Numbers, unlock days and event rules change with patches and differ between states; treat them as rules of thumb and confirm in-game.

Common shorthand you’ll see in alliance chat.

## At a glance

### Most common

| Term | Meaning |
| --- | --- |
| FC / RFC | Fire Crystals / Refined Fire Crystals |
| SvS | State vs State war |
| KoI / HoC | King of Icefield / Hall of Chiefs |
| R4 / R5 | Alliance officers / leader |
| Inf / Lan / MM | Infantry / Lancer / Marksman |

## Details

### Terms

| Term | Meaning |
| --- | --- |
| F30 / FC5 | Furnace level 30 / Fire Crystal level 5 |
| FC / RFC | Fire Crystals / Refined Fire Crystals |
| SvS | State vs State war |
| HoC | Hall of Chiefs |
| KoI | King of Icefield |
| R1–R5 | Alliance ranks (R5 = leader, R4 = officers) |
| Rally lead / joiner | Player who starts a rally / players who send troops into it |
| Bubble | Peace shield |
| Inf / Lan / MM | Infantry / Lancer / Marksman |
| T10 / T11 Helios / T12 | Troop tiers. Helios (T11) and T12 Exalted come from War Academy research |
| F2P / P2W | Free-to-play / pay-to-win spender |
| Gen 1–16 | Hero generations (gold-tier Mythic heroes) |
| AC | Alliance Championship |
| CJ | Crazy Joe |
| Legion | 30 combatants + 10 substitutes in Foundry or Canyon Clash |
| Bear / Bear Trap | Bear Hunt, the alliance rally event against the Raging Bear |