Definition of or:

part of speech: noun

In her., gold, which is expressed by engraved small dots.

part of speech: conjunction

A particle that marks an alternative; the correlative of either; or ever, before.

Usage examples:

Word of the day

ronde bosse

In arch., a term applied to sculptured objects in their full forms, in contradistinction to those which are in relief, or attached more or less to a plane or ground. ...