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ferrule
mastery UK /ˈfɛɹ.(ə)l/ US /ˈfɛɹ.əl/nounverb
card 1 of 6 · fill in the blank
The plumber used a red brass _____ to join the lead pipe to the copper fitting.
card 1 of 6 · fill in the blank
The plumber used a red brass _____ to join the lead pipe to the copper fitting.