n.

1. a heterosexual person; someone having a sexual orientation to persons of the opposite sex;
   heterosexual, heterosexual person, straight person
2. a poker hand with 5 consecutive cards (regardless of suit)
3. a straight segment of a roadway or racecourse;
   straightaway

adj.

1. successive (without a break);
   consecutive
   
   • sick for five straight days
2. having no deviations
   
   • straight lines
   • straight roads across the desert
   • straight teeth
   • straight shoulders
3. (of hair) having no waves or curls
   
   • her naturally straight hair hung long and silky
4. erect in posture;
   unbent, unbowed
   
   • sit straight
   • stood defiantly with unbowed back
5. right; in keeping with the facts
   
   • set the record straight
   • made sure the facts were straight in the report
6. characterized by honesty and fairness;
   square
   
   • straight dealing
   • a square deal
7. no longer coiled;
   uncoiled
8. free from curves or angles
   
   • a straight line
9. neatly arranged; not disorderly
   
   • the room is straight now
10. not homosexual
11. accurately fitted; level;
    true
    
    • the window frame isn't quite true
12. without evasion or compromise;
    square(a), straightforward
    
    • a square contradiction
    • he is not being as straightforward as it appears
13. without water;
    neat, full-strength
    
    • took his whiskey neat
14. following a correct or logical method
    
    • straight reasoning
15. rigidly conventional or old-fashioned;
    square

adv.

1. without deviation;
   directly, direct
   
   • the path leads directly to the lake
   • went direct to the office
2. in a forthright manner; candidly or frankly;
   directly, flat
   
   • he didn't answer directly
   • told me straight out
   • came out flat for less work and more pay
3. in a straight line; in a direct course
   
   • the road runs straight