rompecabezas
puzzle
romper
to break
+
cabeza
head
A rompecabezas is a puzzle, which can be thought of as something that breaks0 (rompe0) your head1 (cabeza1) figuratively as you try to solve it.
noun
- puzzleA puzzle consisting of pieces that fit together to form a picture or designMe encanta armar rompecabezas en mi tiempo libre. // I love putting together puzzles in my free time.