open vs loose

open is a noun but loose is not a noun.

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

As adjectives, open and loose are synonyms defined as:

open (noun)	loose (noun)
information that has become public
a tournament in which both professionals and amateurs may play
a clear or unobstructed space or expanse of land or water
where the air is unconfined

open (adjective)	loose (adjective)
ready or willing to receive favorably	not tight; not closely constrained or constricted or constricting
affording unobstructed entrance and exit; not shut or closed	not compact or dense in structure or arrangement
affording free passage or access	not affixed
(set theory) of an interval that contains neither of its endpoints	(of textures) full of small openings or gaps
open and observable; not secret or hidden	not literal
used of mouth or eyes	lacking a sense of restraint or responsibility
ready for business	not tense or taut
not having been filled	casual and unrestrained in sexual behavior
(of textures) full of small openings or gaps	emptying easily or excessively
openly straightforward and direct without reserve or secretiveness	(of a ball in sport) not in the possession or control of any player
not requiring union membership	not officially recognized or controlled
open to or in view of all	not carefully arranged in a package
possibly accepting or permitting	having escaped, especially from confinement
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)	loose (verb)
make available	become loose or looser or less tight
become available	make loose or looser
make the opening move	turn loose or free from restraint
cause to open or to become open	grant freedom to; free from confinement
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

open (adverb)	loose (adverb)
	without restraint