Old surface Synonyms

Old replaced

ancient surface

Definitions for Old

(adjective) being of advanced years and especially past middle age
(adjective) dating or surviving from the distant past
(adjective) having been such at some previous time

OS abbreviation

OS is an abbreviation for Old Surface

What does OS stand for?

OS stands for "Old Surface"

Surface replaced

Definitions for Surface

(adjective) lying on or affecting only the outer layer of something
(noun) an outer part or layer
(verb) to come to one's attention especially gradually or unexpectedly