finalize

follow through (with), stick out

accomplish, achieve, effect

carry out, carry through, discharge, do, execute, fulfill (or fulfil), perform

ameliorate, amend, better, enhance, enrich, improve, meliorate

machine, refine, round (off or out), shine, touch up

accept, acknowledge, affirm

certify, endorse (also indorse), validate

bless, canonize, sanctify

initial, rubber-stamp, sign, sign off (on)

allow, enable, legalize, license (also licence), pass, permit

reapprove