1) Accepted 2) Approved 3) Authorized 4) Endorsed 5) Gave a thumbs up 6) Gave a thumbs-up to 7) Gave approval 8) Gave approval for 9) Gave green light to 10) Gave the green light 11) Gave the green light to 12) Gave the nod to 13) Gave the thumbs-up 14) Given the go-ahead 15) Given the nod 16) Given thumbs up 1) Allowed 2) Signed