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siren
mastery UK /ˈsaɪəɹən/ US /ˈsaɪɹən/nounverbnameadj
card 1 of 10 · fill in the blank
During the war, the _____ siren would sound whenever enemy planes were spotted.
card 1 of 10 · fill in the blank
During the war, the _____ siren would sound whenever enemy planes were spotted.