segment vs section

segment and section both are nouns.

Word	Noun	Adjective	Verb	Adverb
segment	Yes	No	Yes	No
section	Yes	No	Yes	No

As nouns, segment and section are synonyms defined as:

segment and section: one of several parts or pieces that fit with others to constitute a whole object

As nouns, section is a hyponym of segment; that is, section is a word with a more specific, narrower meaning than segment:

Other hyponyms of segment include metamere, somite, sarcomere, internode.

As verbs, segment and section are synonyms defined as:

segment (noun)	section (noun)
one of several parts or pieces that fit with others to constitute a whole object	the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
one of the parts into which something naturally divides	one of several parts or pieces that fit with others to constitute a whole object
	one of the portions into which something is regarded as divided and which together constitute a whole
	a self-contained part of a larger composition (written or musical)
	a segment of a citrus fruit
	a small army unit usually having a special function
	a division of an orchestra containing all instruments of the same class
	a small team of policemen working as part of a police platoon
	a specialized division of a large organization
	a small class of students who are part of a larger course but are taught separately
	(geometry) the area created by a plane cutting through a solid
	a distinct region or subdivision of a territorial or political area or community or group of people
	a very thin slice (of tissue or mineral or other substance) for examination under a microscope
	a land unit equal to 1 square mile

segment (verb)	section (verb)
divide into segments	divide into segments
divide or split up