A note on this page: terms are listed alphabetically. A few (rally, gacha, whale, P2W) are common across the whole mobile strategy-game genre, not unique to Last War: Survival — they're included because you'll see them in chat regardless. Where a term has its own full page elsewhere on this site, this entry links straight to it.
What the color stripe on each card means: it's a loose thematic grouping, not a strict one-color-per-category system — some categories share a color. Gold = Heroes & Troops. Amber = Alliance & World Map. Red = Combat. Cyan = Core terms & Items/Currency. Grey = Meta/chat slang. Use the category dropdown above if you want to filter down to just one group.