All 4 Uses

staunch
in
Hillbilly Elegy
(Auto-generated)

I had the meanest old hillbilly staunchly in my corner, even if she was hundreds of miles away.
p. 162.1 *

staunchly = firmly
Political scientists have spent millions of words trying to explain how Appalachia and the South went from staunchly Democratic to staunchly Republican in less than a generation.†
p. 140.2
Political scientists have spent millions of words trying to explain how Appalachia and the South went from staunchly Democratic to staunchly Republican in less than a generation.†
p. 140.2
Many of my Marine Corps friends were staunch liberals who had no love for our commander in chief—then George W. Bush—and felt that we had sacrificed too much for too little gain.†
p. 186.6

Definitions:

(1) (staunch as in: a staunch ally)
firm and dependable especially in loyalty
(2) (meaning too rare to warrant focus)
Staunch can mean water-tight as for a ship that does not leak.

Staunch is also sometimes used, especially in British English, to mean stanch (to stop the flow of something--especially blood).