Roots, strings and stones

Find three groups of three connected words.

Mistakes left: ●●●●

Choose three words, then submit your group.

Puzzle notes

This original practice board has nine words and three intended categories. Look for specific shared meanings rather than a broad association. It is part of TrioNine’s 38-puzzle collection, published October 1, 2026.

Words on this board: OAK, BIRCH, MAPLE, VIOLIN, CELLO, VIOLA, RUBY, EMERALD, SAPPHIRE.

Reveal this puzzle’s three groups and explanations

Deciduous trees

OAK · BIRCH · MAPLE

These trees shed their leaves seasonally.

Bowed string instruments

VIOLIN · CELLO · VIOLA

Each is a string instrument commonly played with a bow.

Gemstones

RUBY · EMERALD · SAPPHIRE

These precious stones are used in jewelry.

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