Clappers and Vesper

Clappers noun - A percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance.

Vesper and clappers are semantically related. in signaling object or sound topic. In some cases you can use "Vesper" instead a noun "Clappers".

Vesper noun - A late afternoon or evening worship service.

Clappers and vesper are semantically related. Sometimes you can replace term "Clappers" with "Vesper", this nouns are similar.