mindmap root((赞同)) approve implies commendation or agreement and may suggest a judicious attitude: the parents ~ of the marriage. endorse suggests an explicit statement of support: publicly ~d her for Senator. sanction implies both approval and authorization and may suggest the providing of a standard: the President ~ed covert operations. accredit, certify usually implies official endorsement attesting conformity to set standards: the board voted to ~ the college（accredit）; must be ~ied to teach（certify）.