love child
US /ˈlʌv ˌtʃaɪld/
UK /ˈlʌv ˌtʃaɪld/
1.
a child born to parents not married to each other
:
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In the past, a love child often faced social stigma.
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The term 'love child' is now less common and often considered outdated.
a child born to parents not married to each other