ordering vs sequence

ordering and sequence both are nouns.

Word	Noun	Adjective	Verb	Adverb
ordering	Yes	No	No	No
sequence	Yes	No	Yes	No

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

Other hyponyms of ordering include rank order, grading, scaling, succession, layout, alphabetisation, alphabetization.

ordering (noun)	sequence (noun)
the act of putting things in a sequential arrangement	the action of following in order
logical or comprehensible arrangement of separate elements	film consisting of a succession of related shots that develop a given subject in a movie
	a following of one thing after another in time
	several repetitions of a melodic phrase in different keys
	serial arrangement in which things follow in logical order or a recurrent pattern

ordering (verb)	sequence (verb)
	arrange in a sequence
	determine the order of constituents in