judge - form an opinion of or pass judgment on; "I cannot judge some works of modern art"

acknowledge, admit - declare to be true or admit the existence or reality or truth of; "He admitted his errors"; "She acknowledged that she might have forgotten"

superannuate - declare to be obsolete

bastardise, bastardize - declare a child to be illegitimate

certify - declare legally insane

call - declare in the capacity of an umpire or referee; "call a runner out"

beatify - declare (a dead person) to be blessed; the first step of achieving sainthood; "On Sunday, the martyr will be beatified by the Vatican"

canonize, saint, canonise - in the Catholic church; declare (a dead person) to be a saint; "After he was shown to have performed a miracle, the priest was canonized"

pronounce, label, judge - pronounce judgment on; "They labeled him unfit to work here"

strike down, cancel - declare null and void; make ineffective; "Cancel the election results"; "strike down a law"

formalise, formalize - make formal or official; "We formalized the appointment and gave him a title"