* Simple: The flamenco dancer clicked her castanets rhythmically.
* Descriptive: The castanets were made of polished wood and produced a sharp, percussive sound.
* Figurative: The rain hitting the roof sounded like a thousand tiny castanets.
* Historical: Spanish musicians traditionally used castanets to accompany their songs and dances.
You can also use "castanets" in a sentence about learning to play them, or in a sentence about the specific type of castanets:
* Learning: I'm trying to learn how to play the castanets.
* Specific type: The castanets used in flamenco dancing are typically made of rosewood.