adjective
straighter; -est
[also more ~; most ~]
not having curves, bends, or angles
vertical or level
always used before a noun :following one after the other in order
honest and direct
always used before a noun
including only two people or things
not including any things or parts of a different kind
not used before a noun :with everything in its proper place
not used before a noun :agreeing with what is true or what is stated to be true
not used before a noun informal :having nothing owed by either side
behaving in a way that is socially correct and acceptable
informal :heterosexual
not using drugs or alcohol
US of alcoholic drinks :not mixed with anything :without ice or water added
not joking or funny :serious
adverb
in a straight or direct way
in or into a vertical position
without any delay :directly or immediately
without interruption
in an honest and direct way
in the usual, normal, or correct way
ramrod straight
straight off
US informal :without delay or hesitation :immediately
straight out
informal :in a very direct way
noun
plural straights
[count] informal :heterosexual
usually plural
a straight part of a racecourse :straightaway
usually singular
a hand of playing cards in poker that contains five cards in sequence (such as a five, a six, a seven, an eight, and a nine)
the straight and narrow
informal :the way of living that is honest and morally proper
US