foreperson vs juror

foreperson and juror both are nouns.

Word	Noun	Adjective	Verb	Adverb
foreperson	Yes	No	No	No
juror	Yes	No	No	No

As nouns, juror is a hypernym of foreperson; that is, juror is a word with a broader meaning than foreperson:

foreperson: the presiding member of the jury and the one who speaks on their behalf
juror: someone who serves (or waits to be called to serve) on a jury

foreperson (noun)	juror (noun)
the presiding member of the jury and the one who speaks on their behalf	someone who serves (or waits to be called to serve) on a jury