single parent
US /ˈsɪŋ.ɡəl ˌper.ənt/
UK /ˈsɪŋ.ɡəl ˌper.ənt/

1.
padre soltero, madre soltera, progenitor monoparental
a person who has a child or children but no husband, wife, or partner living with them
:
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Being a single parent can be challenging but rewarding.
Ser padre soltero puede ser desafiante pero gratificante.
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Many single parents rely on government support.
Muchos padres solteros dependen del apoyo gubernamental.