A piece of paper that can be used to pay for particular goods or services or that allows you to pay less than the usual price for them.
vouch+er
Shared component: vouch · to guarantee
OpenEtymologyWORD FAMILY
vouch
to guarantee
Related forms: vouch · 2 words in this dictionary
Related words
Shared components, not spelling prefixesto give or grant (something) to someone in a gracious or condescending manner.
vouch+safe
Shared component: vouch · to guarantee