noun

1. A crack or longitudinal fissure.

2. A breach or separation, as in a political party; a division.

3. A piece that is split off, or made thin, by splitting; a splinter; a fragment.

verb

1. Of something solid, to divide fully or partly along a more or less straight line.

   “He has split his lip.”

2. Of something solid, particularly wood, to break along the grain fully or partly along a more or less straight line.

3. To share; to divide.

   “We split the money among three people.”

Synonyms: break up, split up, cleave

adjective

1. Divided.

   “Republicans appear split on the centerpiece of Mr. Obama's economic recovery plan.”

2. (of a short exact sequence) Having the middle group equal to the direct product of the others.

3. (of coffee) Comprising half decaffeinated and half caffeinated espresso.