A flat, or nearly flat, piece of metal, the thickness of which is small in comparison with the other dimensions; a thick sheet of metal; as, a steel plate.(noun)
source: webster1913
A small five-sided area (enveloping a diamond- shaped area one foot square) beside which the batter stands and which must be touched by some part of a player on completing a run; -- called also home base, or home plate.(noun)
source: webster1913
verb (v)
coat with a layer of metal(verb.contact)
Example: Plate spoons with silver.
source: wordnet30
To cover or overlay with gold, silver, or other metals, either by a mechanical process, as hammering, or by a chemical process, as electrotyping.(verb)