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boomer
mastery UK /ˈbymɑ/ US /ˈbumɚ/nounname
card 1 of 5 · fill in the blank
The sonar operator reported a possible contact: 'I think we've _____ a boomer leaving the fjord.'
card 1 of 5 · fill in the blank
The sonar operator reported a possible contact: 'I think we've _____ a boomer leaving the fjord.'