pizarra
/piˈθara/ · B2 · noun · f
slate
🧑🏫 pizarra: sounds like pizza + RA; slate boards were once cut from slate rock
Say pee-THAR-ah. Think of a teacher saying: pizza, RA! while writing on it. The word names the grey slate rock, and classroom boards were originally made of slate, so the name passed to any blackboard or whiteboard.