Is “Puzzle” a Scrabble word?

1. 1.Anything that is difficult to understand or make sense of.

   “Where he went after he left the house is a puzzle.”

2. 2.A game for one or more people that is more or less difficult to work out or complete.

3. 3.A crossword puzzle.

Synonyms: anybody's guess, anyone's guess, conundrum, enigma, mystery, crossword

1. 1.To perplex (someone).

2. 2.To think long and carefully, in bewilderment.

   “We puzzled over the curious-shaped lock, but were unable to discover how the key should be inserted.”

3. 3.To make intricate; to entangle.