Meaning of “straight” - Learner’s Dictionary

straight

adjective uk us /streɪt/
NOT CURVED

A2 not curved or bent:

a straight road
straight hair
LEVEL

B2 in a position that is level or vertical:

That shelf's not straight.
IN A SERIES [ always before noun ]

one after another:

They've won five straight games so far.
HONEST

B2 honest:

a straight answer
I don't think he was being straight with me.
DRINK

An alcoholic drink that is straight is not mixed with water, ice, etc.

get sth straight

to make sure that you completely understand a situation:

Let me get this straight - am I paying for this?
NOT HOMOSEXUAL informal

not homosexual

→ See also keep a straight face

(Definition of “straight adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)