Five pennies in a nickel. (US coinage)
Professional Service
"PS" means "Points Scored"
postscript postscript
Pint Sized
It is post script -otter
There are n! (n factorial) ways that n people can stand in line. So six people can stand in line in: 1*2*3*4*5*6 = 720 different ways
R--ph J--ps--n has written: 'The expounder expounded'
Plastic Surgeon
it stands for plutonium sulfate
plus
ps =bhp ex. 35ps@5500rpm means 35bhp at 5500rpm
"PS" signifies Metric horsepower. 105 PS is equal to 103.564 in Mechanical horsepower.