The phrase "much credence" means to place a lot of belief or trust in something or someone.
Sentences with «much credence»
This victory may now spill into other countries and give much credence in particular to the Spanish Podemos party. (progressive-economics.ca)
Willie Soon, for example, should never have been given much credence in the first place. (polluterwatch.com)
While some doubt its existence, others (including 56 % of women, according to one study) say they have a G. «Certain experts in the sex education world don't put much credence into the specialness of the G - spot,» says Deitsch. (health.com)