Synonyms for Wicket (same or very similar meaning)
WordNet sense 1 (a small arch used as croquet equipment):
hoop
WordNet sense 2 (small gate or door (especially one that is part of a larger door)):
wicket door, wicket gate
WordNet sense 3 (small opening (like a window in a door) through which business can be transacted):
grille, lattice
From the ODE community, based on WordNet
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