concur with

acknowledge admit adopt affirm approve assume buy comply recognize sign undertake

accede acquiesce assent avow bear okay

agree to check out cooperate with give stamp of approval give the go-ahead give the green light give the nod go for lap up rubber-stamp set store by sign off on take on take one up on thumbs-up

deny disapprove oppose refuse reject repudiate

condemn disagree dissent protest

blackball decline demur disallow discard dispute renounce