noun 
1. 
divide  a serious disagreement between two groups of people (typically producing tension or hostility) 


dissension,
disagreement,
dissonance the speech act of disagreeing or arguing or disputing

verb 
1. 
divide  separate into parts or portions; "divide the cake into three equal parts"; "The British carved up the Ottoman Empire after World War I" 


split,
separate,
dissever 


unify,
unite become one; "Germany unified officially in 1990"; "the cells merge"



change integrity change in physical makeup



subdivide divide into smaller and smaller pieces; "This apartment cannot be subdivided any further!"



initialise,
initialize,
format assign an initial value to a computer program



sectionalise,
sectionalize divide into sections, especially into geographic sections; "sectionalize a country"



triangulate survey by triangulation; "The land surveyor worked by triangulating the plot"



unitise,
unitize separate or classify into units; "The hospital was unitized for efficiency"



lot divide into lots, as of land, for example



parcel make into a wrapped container



sliver,
splinter form into slivers; "sliver wood"



paragraph write paragraphs; work as a paragrapher



canton divide into cantons, of a country



balkanise,
balkanize divide a territory into small, hostile states

2. 
divide  perform a division; "Can you divide 49 by seven?" 


fraction 


multiply combine or increase by multiplication; "He managed to multiply his profits"



compute,
cipher,
cypher,
figure,
calculate,
reckon,
work out understand; "He didn't figure her"



arithmetic the branch of pure mathematics dealing with the theory of numerical calculations



halve divide by two; divide into halves; "Halve the cake"



quarter divide by four; divide into quarters
