pizzicato

As an adverb pizzicato

is (music) an instruction to players of stringed instruments to pluck the strings instead of using the bow usually abbreviated in scores.

As a noun pizzicato

is (music) a note that is played.

As an adjective undefined is

lacking a definition or value.

In lang=en terms the difference between staccato and pizzicato

is that staccato is describing a passage having this mark while pizzicato is a note that is played pizzicato.

As an adjective staccato

is describing a passage having this mark.