staunch

loyal and devoted, especially in difficult times

leal, fiel

Collocations a staunch supporter

• He is a staunch defender of human rights.

  Él es un defensor leal de los derechos humanos.

to stop a leak or prevent something from leaking

detener una fuga, sellar

Collocations staunch a leak

• They tried to staunch the bleeding.

  Intentaron detener la hemorragia.