rank vs position

rank and position both are nouns.

Word	Noun	Adjective	Verb	Adverb
rank	Yes	Yes	Yes	No
position	Yes	No	Yes	No

As nouns, position is a hypernym of rank; that is, position is a word with a broader meaning than rank:

rank: relative status
position: the relative position or standing of things or especially persons in a society

Other hypernyms of rank include status.

As nouns, position is a hypernym of rank; that is, position is a word with a broader meaning than rank:

rank: position in a social hierarchy
position: the relative position or standing of things or especially persons in a society

Other hypernyms of rank include status.

rank (noun)	position (noun)
a row or line of people (especially soldiers or police) standing abreast of one another	the act of putting something in a certain place
the ordinary members of an organization (such as the enlisted soldiers of an army)	a job in an organization
the body of members of an organization or group	(in team sports) the role assigned to an individual player
relative status	the post or function properly or customarily occupied or served by another
position in a social hierarchy	the act of positing; an assumption taken as a postulate or axiom
	the spatial property of a place where or way in which something is situated
	the arrangement of the body and its limbs
	a way of regarding situations or topics etc.
	a rationalized mental attitude
	an opinion that is held in opposition to another in an argument or dispute
	an item on a list or in a sequence
	the particular portion of space occupied by something
	a point occupied by troops for tactical reasons
	the appropriate or customary location
	the relative position or standing of things or especially persons in a society
	a condition or position in which you find yourself

rank (adjective)	position (adjective)
growing profusely
complete and without restriction or qualification; sometimes used informally as intensifiers
conspicuously and outrageously bad or reprehensible
very fertile; producing profuse growth
very offensive in smell or taste

rank (verb)	position (verb)
assign a rank or rating to	put into a certain place or abstract location
take or have a position relative to others	cause to be in an appropriate place, state, or relation
take precedence or surpass others in rank