rip sb off	to charge too much
run sb down	to criticize sb
run down	to lose power, to decline
run into sb	to meet sb
run to sth	to have enough money to buy sth
run over/through	to check
run up a bill	to let a bill get longer without paying
run up against	to encounter a problem
see sb off	to go to the station or so to say goodbye to sb
see through	to realize the truth about sth
send sb up	to make fun of sb by imitating
set about doing sth	to start doing sth
set in	to establish itself (weather)
set out	to give in detail in writing/ to arrange
set out to do sth	to start to do sth
set up	to establish
set on/upon	to attack
sink in	to realize slowly
slip up	to make a mistake
sort sth out	to find a solution
stand by	to keep to an agreement
stand for	to represent/ to tolerate
stand in for sb	to take place of sb
stand up to sth	to resist, to bear stress