To call into question the validity of (a belief, idea, or viewpoint); to challenge.
The new information threatened our original hypothesis.
(figuratively) To be close to equaling or surpassing (a record, etc.)
The player quickly surmised that things weren't kosher and the suddenly wiser ballplayer threatened the world record for the fifty-yard dash as he sought safety. As Reynolds dived into the van, Dietz and the other players rolled with laughter.