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23 words ending with gs, 15 letters long

backscatterings bioengineerings bremsstrahlungs countershadings electrofishings electrowinnings featherbeddings fingerprintings fortunetellings immunoblottings mountaineerings nonengineerings nonoverlappings photoengravings photofinishings rumormongerings silversmithings steeplechasings strikebreakings teleprocessings wappenschawings weltanschauungs whistleblowings