As a verb fetch
is to retrieve; to bear towards; to go and get.
As a noun fetch
is the object of fetching; the source and origin of attraction; a force, quality or propensity which is attracting eg, in a given attribute of person, place, object, principle, etc.
As an adjective fetch
is (slang) attractive, popular.
As a letter y is
the letter y with a (
l) above itself.