1.
If something stands up to bad conditions, it is not damaged or harmed by them.
Is this building going to ~ the strongest gales?
PHRASAL VERB: V P P n/-ing
2.
If you ~ someone, especially someone more powerful than you are, you defend yourself against their attacks or demands.
He hit me, so I hit him back–the first time in my life I’d stood up to him...
PHRASAL VERB: V P P n