zoning vs segmentation

zoning and segmentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
zoning	Yes	No	No	No
segmentation	Yes	No	No	No

As nouns, segmentation is a hypernym of zoning; that is, segmentation is a word with a broader meaning than zoning:

zoning: dividing an area into zones or sections reserved for different purposes such as residence and business and manufacturing etc
segmentation: the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart

Other hypernyms of zoning include division, partition, partitioning, sectionalisation, sectionalization.

zoning (noun)	segmentation (noun)
dividing an area into zones or sections reserved for different purposes such as residence and business and manufacturing etc	the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart
	(embryology) the repeated division of a fertilised ovum