be sb's own flesh and blood
C2 to be someone's relation:
I couldn't send him away - he's my own flesh and blood.
Thesaurus: synonyms and related words
Family: relations in general
- aunt
- auntie
- baby daddy
- birth mother
- birth parent
- filial
- first cousin
- fraternal
- fraternal twin
- grandchild
- loved one
- maiden aunt
- maternal
- matriarch
- mom-and-pop
- son
- uncle
- working mother/father/parent
- your nearest and dearest idiom
- your own flesh and blood idiom
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