protect something from a danger
shield
hit something with a hammer
hammer
move one's hand back and forth in greeting
wave
catch a foot on something and fall
trip
superficially cut or clean in a large area
scrape
bend something flexible over itself
fold
pull a vehicle with a rope or chain
tow
meet and come into conflict
clash
follow the trail of something or someone
track
do repeated exercises to learn/ produce a hole
drill
cut something, normally wood
saw
eject something from the mouth
spit