re ‧ af ‧ firm /ˌriːəˈfɜːm $ -ɜːrm/ BrE AmE verb [transitive]
to formally state an opinion, belief, or intention again, especially when someone has questioned you or expressed a doubt SYN reiterate :
The party reaffirmed its commitment to nuclear disarmament.
reaffirm that
The government has reaffirmed that education is a top priority.
—reaffirmation /ˌriːæfəˈmeɪʃ ə n $ -fər-/ noun [uncountable and countable]