Thud and Thrum

Thud verb - To come into usually forceful contact with something.

Thrum and thud are semantically related In some cases you can use "Thrum" instead the word "Thud" as a verb or a noun.

Thrum verb - Sound the strings of (a string instrument).

Thud and thrum are semantically related in beat topic. Sometimes you can use "Thud" instead the word "Thrum" as a verb or a noun, if it concerns topics such as quiver.