Puzzle Glossary: Category Types & Solver Jargon

Every word-grouping puzzle draws from a surprisingly small toolkit of category mechanisms. Learn to recognise them by name and boards stop feeling random. Here are the terms we use across our answer walkthroughs, with examples.

Literal category

The most direct group type: four words that are simply members of the same real-world set — oceans, pasta shapes, chess pieces, dog breeds. In difficulty-graded puzzles this is usually the yellow (easiest) group. The words mean exactly what they say.

Themed set

A literal category drawn from a specific franchise or niche list rather than everyday vocabulary: Monopoly tokens, retired hurricane names, NATO phonetic letters, Steven Universe gems. Themed sets feel obscure if you don't know the source, but the words themselves are still used literally.

Fill-in-the-blank (affix group)

Four words that all combine with the same unstated word: RAIN, DEW, GUM and EAVES all precede drop; KEY, SURF, DASH and CARD all precede board. Written as “___ drop” or “board ___” in answers. If four words share no meaning at all, test this mechanism first.

Homophone group

Words grouped by sound rather than spelling: WURST (worst), MOOSE (mousse), FLOUR (flower). Reading the board aloud is the standard way to catch these.

Hidden-word group

Each member conceals a smaller word: cHARMs hides ARM, bEARd hides EAR. The group label is typically “words containing a body part” or similar. These are classic purple-tier material because the surface meanings are pure noise.

Decoy (or trap word)

A word deliberately chosen to look like it belongs to another group: ROOK reads as a bird but sits with chess pieces; SNAKE reads as a reptile but names a river. Well-built boards contain two or three decoys, almost always pointing at an easier group than the one they belong to.

Red herring category

A category that seems to exist on the board — five plausible colours, five plausible birds — but is never one of the four answers in that form. Spotting five candidates for one label is the tell: exactly one of them belongs elsewhere.

Difficulty tiers (yellow / green / blue / purple)

The conventional colour grading: yellow is the most literal group, green adds a small twist, blue requires naming a less obvious category, and purple is the curveball — usually a fill-in-the-blank, homophone, or hidden-word mechanism. Our daily hints follow this ordering.

One away

Solver shorthand for a guess in which three of the four selected words were correct. Treat it as a strong signal: keep the trio, swap the weakest member.

Solving by elimination

Finishing the hardest group indirectly by confirming the other three first, so the final four tiles are forced. The safest way to handle purple-tier groups — see our word-grouping tips for when and why.

Ready to spot these in the wild? Play today's Daily Group Grid or study a few past boards — the mechanisms above account for virtually every group we have ever published.