be known as vs rename

be known as and rename both are verbs.

Word	Noun	Adjective	Verb	Adverb
be known as	No	No	Yes	No
rename	No	No	Yes	No

As verbs, rename is a hyponym of be known as; that is, rename is a word with a more specific, narrower meaning than be known as:

Other hyponyms of be known as include baptise, baptize, christen, refer, style, title, dub, nickname, entitle, title, term, tag.

be known as (verb)	rename (verb)
look on as or consider	assign a new name to
assign a specified (usually proper) name to	name again or anew