Synonyms for Dummy (same or very similar meaning)
WordNet sense 1 (a person who does not talk):
silent person
WordNet sense 2 (an ignorant or foolish person):
booby, dope, dumbbell, pinhead
WordNet sense 3 (a cartridge containing an explosive charge but no bullet):
blank, blank shell
WordNet sense 4 (contrived by art rather than nature):
artificial, unreal
WordNet sense 5 (make a dummy of):
dummy up
From the ODE community, based on WordNet
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