one's next of kin

(one's) next of kin

One's closest living relative. Now that the body has been identified, we'll have to notify his next of kin of his death. The will specifies that her next of kin will be entitled to her entire estate. Because she didn't have a next of kin, she left all of her money to her favorite charity.
See also: kin, next, of
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

one's next of kin

one's closest living relative or relatives. The police notified the dead man's next of kin. My next of kin lives 800 miles away.
See also: kin, next, of
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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