bose

As a proper noun underground

is (uk|rail transport) the london underground.

As a verb bose is

.

As verbs the difference between sound and bose

is that sound is to produce a sound while bose is to strike the ground with an object in order to determine, from the resulting sounds, what lies underground.

As an adjective sound

is healthy.

As an adverb sound

is soundly.

As an interjection sound

is yes; used to show agreement or understanding, generally without much enthusiasm.

As a noun sound

is a sensation perceived by the ear caused by the vibration of air or some other medium.

As a proper noun Sound

is the strait that separates Zealand (an island of Denmark) from Scania (part of Sweden); also sometimes called by the Danish name, Øresund.

As verbs the difference between ground and bose

is that ground is to connect (an electrical conductor or device) to a ground while bose is to strike the ground with an object in order to determine, from the resulting sounds, what lies underground.

As a noun ground

is (surface of the Earth) The surface of the Earth, as opposed to the sky or water or underground.

As an adjective ground

is crushed, or reduced to small particles.