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spyglass

1 ENTRIES FOUND:
spyglass /ˈspaɪˌglæs/ Brit /ˈspaɪˈglɑːs/ noun
plural spyglasses
spyglass
/ˈspaɪˌglæs/ Brit /ˈspaɪˈglɑːs/
noun
plural spyglasses
Britannica Dictionary definition of SPYGLASS
[count]
: a small telescope used by sailors in the past