1 breaking noisily into pieces
VERB + SMASH hear
PREP. with a ~ The plate hit the floor with a smash. | ~ of He heard the smash of breaking glass.
2 car, etc. crash
ADJ. head-on | bus, car, train | motorway, road
VERB + SMASH have
PREP. in a/the ~ Four people were seriously injured in a head-on smash on the A45.
3 in tennis
ADJ. powerful | overhead
VERB + SMASH hit He can hit a powerful overhead smash.