As nouns the difference between squeegee and wiper
is that
squeegee is a tool consisting of a rubber blade at right angles to a handle, used for spreading, pushing or wiping liquid material on, across or off a surface, especially when cleaning glass, eg the windscreen of a vehicle or a shop window, to remove soapy water while
wiper is someone who wipes.
As a verb squeegee
is to clean with a squeegee.