This is the 292nd most frequent German word.
halten
"To hold" or "to stop."
The verb 'halten' is used here in its literal sense, meaning 'to hold' or 'to grasp something in one's hands.'
Ich halte den Ball mit beiden Händen.
I hold the ball with both hands.
Here, 'halten' is used idiomatically with 'für' to express an opinion or consideration about someone's qualities.
Er hält sie für eine kluge Person.
He considers her a smart person.
The verb 'halten' in this context means 'to keep' or 'to fulfill' an obligation or commitment.