Can the word out be a preposition?

Question

Please help!

Answer 1

Yes, if it is used as one and not as an adverb.
Ex: The bird flew out the door.

http://www.uazone.org/friends/esl4rus/prepositions.html
List of common prepositions

about
above
across
after
against
around
at
before
behind
below
beneath
beside
besides
between
beyond by
down
during
except
for
from
in
inside
into
like
near
of
off on
out
outside
over
since
through
throughout
till
to
toward
under
up
upon
with
without
according to
because of
by way of
in addition to
in front of
in place of
in regard to
in spite of
instead of
on account of
out of