This is the 314th most frequent Hungarian word.
igaz
True.
Here, 'igaz' is used as an adjective meaning 'true' or 'correct'.
Ez az információ igaz.
This information is true.
In this question, 'igaz' acts as a predicate inquiring about the truthfulness of a statement.
Igaz, hogy késni fogsz?
Is it true that you will be late?
Here, 'igaz' introduces a subordinate clause to state agreement with a fact.