tes ‧ ti ‧ mo ‧ ni ‧ al /ˌtestəˈməʊniəl, ˌtestɪˈməʊniəl $ -ˈmoʊ-/ BrE AmE noun [countable]
1 . a formal written statement describing someone’s character and abilities ⇨ reference
2 . something that is given or done to someone to thank or praise them, or show admiration for them:
a testimonial dinner in honour of Senator Frank Flint