S: (v) segregate (divide from the main body or mass and collect) "Many towns segregated into new counties"; "Experiments show clearly that genes segregate"
S: (v) segment (divide or split up) "The cells segmented"
S: (v) segment, section (divide into segments) "segment an orange"; "segment a compound word"
S: (v) partition, partition off (divide into parts, pieces, or sections) "The Arab peninsula was partitioned by the British"
S: (v) dismember, take apart, discerp (divide into pieces) "our department was dismembered when our funding dried up"; "The Empire was discerped after the war"
S: (v) gerrymander (divide unfairly and to one's advantage; of voting districts)