blood feud

noun

a feud in which members of the opposing parties murder each other

• Syn: ↑vendetta

• Hypernyms: ↑feud

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noun

: a feud between the members of different clans or families arising out of a crime of violence (as a killing) committed by a member of one upon a member of the other and requiring a continuing series of alternative retaliations in kind — called also vendetta; compare blood money, wergild

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feud¹ (def. 1).

[1855-60]

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blood feud,

a very bitter feud marked by bloodshed: »

A blood feud could be handed down from generation to generation (New Yorker).

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n. a lengthy conflict between families involving a cycle of retaliatory killings or injury

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noun, pl ⋯ feuds [count]

: a very long fight between two families or groups in which each group kills members of the other group in order to punish the group for earlier murders