n.

1. proper alignment; the property possessed by something that is in correct or proper alignment
   
   • out of true

v.

1. make level, square, balanced, or concentric;
   true up
   
   • true up the cylinder of an engine

adj.

1. consistent with fact or reality; not false
   
   • the story is true
   • it is undesirable to believe a proposition when there is no ground whatever for supposing it true"- B. Russell; "the true meaning of the statement
2. conforming to definitive criteria
   
   • the horseshoe crab is not a true crab
   • Pythagoras was the first true mathematician
3. accurately placed or thrown;
   dead on target
   
   • his aim was true
   • he was dead on target
4. devoted (sometimes fanatically) to a cause or concept or truth
   
   • true believers bonded together against all who disagreed with them
5. expressing or given to expressing the truth;
   truthful
   
   • a true statement
   • gave truthful testimony
   • a truthful person
6. worthy of being depended on;
   dependable, honest, reliable, true(p)
   
   • a dependable worker
   • an honest working stiff
   • a reliable source of information
   • he was true to his word
   • I would be true for there are those who trust me
7. not pretended; sincerely felt or expressed;
   genuine, true(a), unfeigned
   
   • genuine emotion
   • her interest in people was unfeigned
   • true grief
8. rightly so called;
   true(a)
   
   • true courage
   • a spirit which true men have always admired
   • a true friend
9. determined with reference to the earth's axis rather than the magnetic poles;
   true(a)
   
   • true north is geographic north
10. having a legally established claim;
    true(a), lawful, rightful(a)
    
    • the legitimate heir
    • the true and lawful king
11. in tune; accurate in pitch;
    on-key
    
    • a true note
12. accurately fitted; level;
    straight
    
    • the window frame isn't quite true

adv.

1. as acknowledged;
   admittedly, avowedly, confessedly
   
   • true, she is the smartest in her class