TrioNine

hard practice

Letter patterns

An original nine-word puzzle. Find three groups, then explore the explanations.

Unlimited practice

hard

Letter patterns

Find three groups of three connected words.

Mistakes left: ●●●●

Choose three words, then submit your group.

Puzzle notes and explanations

Puzzle notes

This original practice board has nine words and three intended categories. Look at language patterns as well as meanings. It is part of TrioNine’s 38-puzzle collection, published October 1, 2026.

Words on this board: LEVEL, RADAR, CIVIC, KNIFE, KNOT, KNEEL, BOOK, SEED, MOON.

Reveal this puzzle’s three groups and explanations

Palindromes

LEVEL · RADAR · CIVIC

Each reads the same forward and backward.

Silent initial K

KNIFE · KNOT · KNEEL

The initial K is not pronounced in standard English.

Double consecutive vowels

BOOK · SEED · MOON

Each contains two identical consecutive vowels.

Solving strategy · More original puzzles