As a verb skip
is to move by hopping on alternate feet.
As a noun skip
is a leaping, jumping or skipping movement or skip
can be (australia|new zealand|british) a large open-topped rubbish bin, designed to be lifted onto the back of a truck to take away both bin and contents; called a dumpster in north america (where "skip" is completely unknown and incomprehensible) see also skep or skip
can be short for skipper, the master or captain of a ship, or other person in authority or skip
can be (australia|slang) an australian of anglo-celtic descent.
As a symbol sk is
the iso 639 alpha-2 language code for slovak.