recommendation

(noun) something (as a course of action) that is recommended as advisable.

(noun) something that recommends (or expresses commendation of) a person or thing as worthy or desirable. Synonyms: testimonial, good word.

(noun) any quality or characteristic that gains a person a favorable reception or acceptance or admission. Synonyms: passport. Examples: "Her pleasant personality is already a recommendation." "His wealth was not a passport into the exclusive circles of society."