"sublet" meaning from Yahoo:
"It depends on weather you are renting from some one or to some one.
Mr.A rents a two bedroom apt by himself but after several monthe he finds out that he is having a hard time paying the rent and utilities. Mr. A checks his lease and with the Landlord (two important steps) about renting out the second bedroom to someone to help with the rent. When he does this Mr. A is subletting. He is renting to another person. The second renter must abide by all of the rules of the original lease plus any extra by Mr. A.
There is no real association between the new renter and the landlord, unless Mr. A broke some lease clause. Then the landlord can evict both of you.pp