You searched for: “curb
curb, curb
curb (KURB) (noun)
A raised paving or concrete border or row of joined stones forming part of a gutter along the edge of a street: The car drove into the parking space, stopping when the front tires bumped against the curb.
curb (KURB) (verb)
To restrain or to control; to rein in: When Clay got very angry, he had to remind himself to curb his temper so he wouldn't get a headache.

Walking across the street, Phil tripped on the curb. This really upset him so he had to remind himself to breathe deeply so he could curb his anxiety, because although he could have broken his foot, he didn't.