extending in one direction without bends or curves
in geometry, said of a line: lying on the shortest path between any two points on it
said of hair: not wavy or curly
said of a course, route, aim, etc: going direct to its destination or target
said of a garment, esp a skirt: not gathered or flared
level, upright, or symmetrically positioned; not skew
in a proper or tidy state
honest or fair
straight dealing
accurately sorted out; correct
Get your facts straight
simple or straightforward
straight thinking
a straight answer
said of successes: following consecutively or uninterruptedly
their seventh straight win
said of an alcoholic drink: unmixed; neat
in the theatre, denoting a conventional play as distinct from e.g. a farce or musical
informal conventional in appearance, habits, opinions, etc; = square2
informal not using or under the influence of drugs
informal heterosexual
to refrain from laughing
to give somebody the facts about something and clear up any misunderstanding