Bible Dictionaries
Clincher

Webster's Dictionary

(1):

(n.) That which ends a dispute or controversy; a decisive argument.

(2):

(n.) One who, or that which, clinches; that which holds fast.

Bibliography Information
Webster, Noah. Entry for 'Clincher'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​c/clincher.html. 1828.