cre ‧ do /ˈkriːdəʊ, ˈkreɪ- $ -doʊ/ BrE AmE noun ( plural credos ) [countable]
[ Date: 1100-1200 ; Language: Latin ; Origin: 'I believe' ; the first word of the Creed ]
a formal statement of the beliefs of a particular person, group, religion etc:
American Express is emphasizing its ‘the customer is first’ credo.