Testimonial
Part of speech: noun
Definition: A statement, especially one given under oath; testimony A written recommendation of someone's worth or character A tribute given in appreciation of someone's service etc. A match played in tribute to a particular player (who sometimes receives a proportion of the gate money).
Example sentence: Testimonials are enough to convince people for now.
Testimony
Part of speech: noun
Definition: Statements made by a witness in court.An account of first-hand experience.In a church service, a personal account, such as of one's conversion.