As nouns the difference between mouse and china
is that
mouse is any small rodent of the genus
mus while
china is (uncountable) the root of a climbing plant,
smilax china l, once believed to have important medicinal properties or
china can be (cockney rhyming slang|countable) mate (ie, friend).
As a verb mouse
is to move cautiously or furtively, in the manner of a mouse (the rodent) (
frequently used in the phrasal verb to mouse around ).