registrar vs recorder

registrar and recorder both are nouns.

Word	Noun	Adjective	Verb	Adverb
registrar	Yes	No	No	No
recorder	Yes	No	No	No

As nouns, registrar and recorder are synonyms defined as:

Other synonyms of registrar include record-keeper.

registrar (noun)	recorder (noun)
someone responsible for keeping records	a tubular wind instrument with 8 finger holes and a fipple mouthpiece
the administrator responsible for student records	equipment for making records
a person employed to keep a record of the owners of stocks and bonds issued by the company	someone responsible for keeping records
	a barrister or solicitor who serves as part-time judge in towns or boroughs