open vs surface

open and surface both are nouns.

Word	Noun	Adjective	Verb	Adverb
open	Yes	Yes	Yes	No
surface	Yes	Yes	Yes	No

As nouns, open and surface are synonyms defined as:

open (noun)	surface (noun)
information that has become public	the outer boundary of an artifact or a material layer constituting or resembling such a boundary
a tournament in which both professionals and amateurs may play	a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight
a clear or unobstructed space or expanse of land or water	a superficial aspect as opposed to the real nature of something
where the air is unconfined	information that has become public
	the extended two-dimensional outer boundary of a three-dimensional object
	the outermost level of the land or sea

open (adjective)	surface (adjective)
ready or willing to receive favorably	on the surface
affording unobstructed entrance and exit; not shut or closed
affording free passage or access
(set theory) of an interval that contains neither of its endpoints
open and observable; not secret or hidden
used of mouth or eyes
ready for business
not having been filled
(of textures) full of small openings or gaps
openly straightforward and direct without reserve or secretiveness
not requiring union membership
open to or in view of all
possibly accepting or permitting
without undue constriction as from e.g. tenseness or inhibition
having no protecting cover or enclosure
affording free passage or view
with no protection or shield
accessible to all
not sealed or having been unsealed
not brought to a conclusion; subject to further thought
not defended or capable of being defended

open (verb)	surface (verb)
make available	appear or become visible; make a showing
become available	put a coat on; cover the surface of; furnish with a surface
make the opening move	come to the surface
cause to open or to become open
become open
spread out or open from a closed or folded state
display the contents of a file or start an application as on a computer
afford access to
start to operate or function or cause to start operating or functioning
begin or set in action, of meetings, speeches, recitals, etc.
have an opening or passage or outlet