veglia

As a noun taxonomy

is the science or the technique used to make a classification.

As a proper noun veglia is

(dated) krk, a croatian island in the adriatic sea.

Veglia is a synonym of krk.

As proper nouns the difference between veglia and krk

is that veglia is (dated) krk, a croatian island in the adriatic sea while krk is an island in the adriatic sea, off the coast of croatia.