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belfry

2 ENTRIES FOUND:
belfry /ˈbɛlfri/ noun
plural belfries
belfry
/ˈbɛlfri/
noun
plural belfries
Britannica Dictionary definition of BELFRY
[count]
: a tower or part of a tower where a bell or set of bells hangs

bats in the/your belfry

informal + old-fashioned
◊ To have bats in the belfry or (chiefly US) bats in your belfry is to be crazy.