adoption, acceptance, acceptation, espousal - the act of accepting with approval; favorable reception; "its adoption by society"; "the proposal found wide acceptance"

support - aiding the cause or policy or interests of; "the president no longer had the support of his own party"; "they developed a scheme of mutual support"

backing, patronage, championship, backup - the act of providing approval and support; "his vigorous backing of the conservatives got him in trouble with progressives"

admiration, appreciation - a favorable judgment; "a small token in admiration of your works"

reward, reinforcement - an act performed to strengthen approved behavior

favourable, favorable - encouraging or approving or pleasing; "a favorable reply"; "he received a favorable rating"; "listened with a favorable ear"; "made a favorable impression"