true

as acknowledged

“true, she is the smartest in her class”

conforming to definitive criteria

“the horseshoe crab is not a true crab”

consistent with fact or reality; not false

“the story is true”

determined with reference to the earth's axis rather than the magnetic poles

“true north is geographic north”

devoted (sometimes fanatically) to a cause or concept or truth

“true believers bonded together against all who disagreed with them”

proper alignment; the property possessed by something that is in correct or proper alignment

“out of true”

rightly so called

“true courage”

make level, square, balanced, or concentric

“true up the cylinder of an engine”

accurately fitted; level

“the window frame isn't quite true”

not pretended; sincerely felt or expressed

“true grief”

in tune; accurate in pitch

“a true note”