Real Dictionary

split
verb: If an organization splits or is split, one group of members disagrees strongly with the other members, and may form a group of their own.
verb: If something splits or if you split it, it is divided into two or more parts.

Split in American English
seaport in Croatia, on the Adriatic: pop. 189,000
to separate, cut, or divide into two or more parts; cause to separate along the grain or length; break into layers
intransitive verb: to divide, break, or part lengthwise
transitive verb: to divide or separate from end to end or into layers

split in British English
noun: a port and resort in W Croatia on the Adriatic: remains of the palace of Diocletian (295–305). Pop: 188 000 (2005 est)
verb: to break or cause to break, esp forcibly, by cleaving into separate pieces, often into two roughly equal pieces