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paraspotter
paraspotter n.
Brit. 
/ˈparəˌspɒtə/
, /ˈparəˌspɒtə/U.S. /ˈpɛrəˌspɑdər/
a person who watches for enemy parachute landings./ˈpɛrəˌspɑdər/ΘΚΠ
society > armed hostility > warrior > others concerned with military affairs > [noun] > air-raid warden, fire-watcher, etc.
fire-watcher1830
street warden1835
air warden1933
air raid warden1936
warden1936
paraspotter1940
roof-spotter1940
roof-watcher1940
1940 in Amer. Speech (1944) 19 12/2 Britain has 400,000 paraspotters ready to fight parachutists.
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as lemmas