Open English Wordnet
Nouns
(n)trueproper alignment; the property possessed by something that is in correct or proper alignment“out of true” Verbs
(v)true, true upmake level, square, balanced, or concentric“true up the cylinder of an engine” Adjectives
(a)trueconsistent 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” (s)true, dead on targetaccurately placed or thrown“his aim was true”,
“he was dead on target” (s)truedevoted (sometimes fanatically) to a cause or concept or truth“true believers bonded together against all who disagreed with them” (a)truthful, trueexpressing or given to expressing the truth“a true statement”,
“gave truthful testimony”,
“a truthful person” (s)trueconforming to definitive criteria“the horseshoe crab is not a true crab”,
“Pythagoras was the first true mathematician” (s)dependable, honest, reliable, trueworthy of being depended on“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” (s)genuine, true, unfeignednot pretended; sincerely felt or expressed“genuine emotion”,
“her interest in people was unfeigned”,
“true grief” (s)truerightly so called“true courage”,
“a spirit which true men have always admired”,
“a true friend” (s)truedetermined with reference to the earth's axis rather than the magnetic poles“true north is geographic north” (s)true, lawful, rightfulhaving a legally established claim“the true and lawful king”,
“the rightful heir” (s)on-key, truein tune; accurate in pitch“a true note” (s)true, straightaccurately fitted; level“the window frame isn't quite true” Adverbs