Incest
/ˈɪˌnsɛst/
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Definition
(noun) Sexual relations between close relatives, especially immediate family members and sometimes first cousins, usually considered taboo.
Sentence Examples
Imagine, for the sake of argument, a tribal group in which mother-son incest was countenanced.
Incest is a taboo found in almost all cultures.
CEFR Practice Quiz
Societies across the world have established strict laws and taboos against the practice of ____.