extended family
US /ɪkˌsten.dɪd ˈfæm.əl.i/
UK /ɪkˌsten.dɪd ˈfæm.əl.i/

1.
famille élargie, grande famille
a family that extends beyond the nuclear family, consisting of parents, children, and other more distant relatives, often living in the same household or in close proximity.
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During the holidays, our house is always full of our extended family.
Pendant les vacances, notre maison est toujours pleine de notre famille élargie.
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In many cultures, living with your extended family is common.
Dans de nombreuses cultures, vivre avec sa famille élargie est courant.