hollyhock UK /ˈhɒlihɒk/US /ˈhɑlihɑk/ noun1 •Any of several flowering plants of the genus Alcea in the Malvaceae family.No cottage in Coughton boasted taller hollyhocks, nor finer Michaelmas daisies in the autumn than Dame Magdalen’s almshouses; […] — 1842 formshollyhocks