true in WordNet English dictionary

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

1. accurately placed or thrown
   "his aim was true"; "he was dead on target"
   true  dead on target 
   
2. worthy of being depended on
   "a dependable worker"; "an honest working stiff"; "a reliable sourcSFLe of information"; "he was true to his word"; "I would be true for there are those who trust me"
   dependable  honest  reliable  true 
   
3. not pretended; sincerely felt or expressed
   "genuine emotion"; "her interest in people was unfeigned"; "true grief"
   genuine  true  unfeigned 
   
4. having a legally established claim
   "the legitimate heir"; "the true and lawful king"
   true  lawful  rightful 
   
5. in tune; accurate in pitch
   "a true note"
   on-key  true 
   
6. accurately fitted; level
   "the window frame isn't quite true"
   true  straight 
   
7. 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"
   true 
   
8. expressing or given to expressing the truth
   "a true statement"; "gave truthful testimony"; "a truthful person"
   truthful  true 
   
9. determined with reference to the earth's axis rather than the magnetic poles
   "true north is geographic north"
   true 
   
10. rightly so called
    "true courage"; "a spirit which true men have always admired"; "a true friend"
    true 
    
11. conforming to definitive criteria
    "the horseshoe crab is not a true crab"; "Pythagoras was the first true mathematician"
    true 
    
12. devoted (sometimes fanatically) to a cause or concept or truth
    "true believers bonded together against all who disagreed with them"
    true 
    

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

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