Mis ‧ sis ‧ sip ‧ pi /ˌmɪsəˈsɪpi◂, ˌmɪsɪˈsɪpi◂/ BrE AmE
1 . ( written abbreviation MS ) a state in the southeastern US, now an industrial area but formerly producing a lot of cotton, and an important centre of the Civil Rights Movement in the 1950s and 1960s ⇨ ↑ Deep South
2 . the Mississippi the longest river in the US, about 2350 miles long, which flows from Minnesota to the Gulf of Mexico