muzzle — the mouth, or end for discharge, of the barrel of a gun, pistol, etc.
puzzle — a toy, problem, or other contrivance designed to amuse by presenting difficulties to be solved by ingenuity or patient effort.
Three-syllable rhymes
chinese puzzle — an intricate puzzle, esp one consisting of boxes within boxes
crossword puzzle — a puzzle in which the solver deduces words suggested by numbered clues and writes them into corresponding boxes in a grid to form a vertical and horizontal pattern
jigsaw puzzle — Also called picture puzzle. a set of irregularly cut pieces of pasteboard, wood, or the like that form a picture or design when fitted together.
monkey puzzle — a South American, coniferous timber tree, Araucaria araucana, having candelabralike branches, stiff sharp leaves, and edible nuts.
