adjective / adverb / verb
true
TROO/truː/
Conforming to what is actual or correct.
The drawing gives a true picture of the three apples.

Etymology
Old English treowe described someone faithful and trustworthy. The meaning shifted from reliability in keeping faith to reliability in representing things as they really are.
In context
The proposition when I assert “This is a cat,” is true if the object of the “this” is in fact a cat, and false if it is anything other than a cat.
More examples
- The rumor turns out to be true.
- She is a true expert in her field.
- The arrow flies true toward the target.
- The mechanic trues the wheel so it spins evenly.