Straight is a related term of uniform.
As an adjective straight
is not crooked or bent; having a constant direction throughout its length.
As an adverb straight
is of a direction relative to the subject, precisely; as if following a direct line.
As a noun straight
is something that is not crooked or bent.
As a verb straight
is to straighten.
As a symbol uniform is
the letter u in the icao spelling alphabet.