abanderado

n. (Politics) standard bearer, leader, ideal; (Latin America) representative (Sports); (Mexico) linesman, offense player

v. register, record (Nautical); champion, defend; advocate, promote; have influence

= torchbearer [torch bearer], standard-bearer.
Ex: The mission of college libraries in India is to shoulder the responsibilities of a torch bearer.
Ex: He was a rebel and an anti-establishment standard-bearer of intellectualism and internationalism.

= lead.
Nota: Verbo irregular: pasado y participio lead.
Ex: A book index is an alphabetically arranged list of words or terms leading the reader to the numbers of pages on which specific topics are considered, or on which specific names appear.