be, look
become
stay
keep sth
Keep the car straight when you're backing out.

hold sth
She held herself very straight.

absolutely, completely, dead (esp. BrE), perfectly
Keep going in a dead-straight line.
His teeth were white and perfectly straight.

almost, more or less, nearly
fairly, relatively
naturally
She had curled her naturally straight hair.

be, look
hang sth, put sth
Can you hang that sign straight for me?

absolutely, completely, perfectly, quite
almost, more or less, nearly

be
get sth, put sth
I'm trying to get the house straight before the weekend.
She tidied up and put the ornaments straight.

keep sth

be
I think he was pretty straight with me.

absolutely, completely, totally
fairly, pretty

with
Are you being completely straight with her?

be
get sth
put sb (esp. BrE), set sb (esp. AmE)
She soon set me straight about what had happened.

absolutely
Let's get this absolutely straight.

Straight is used with these nouns:
actor, actress, answer, back, brandy, cut, edge, fight, friend, hair, line, man, marriage, month, nose, path, pin, question, reply, road, sex, skirt, stitch, stretch, swap, talk, ticket, tooth, victory, whisky, win, year