n.
1.a sharp abrupt noise as if two objects hit together
2.a simple valve with a hinge on one side clack v.
1.make a rattling sound
2.make a clucking sounds, characteristic of hens
3.speak (about unimportant matters) rapidly and incessantly
Idiom of the Day
make an impression (on someone)
to produce a strong or memorable effect on someone
The elderly man made an impression on me and I was sad when I heard that he had died.