Diglossia
Gender-based diglossia

In Ghana, a dialect called " Student Pidgin " was traditionally used by men in all-male secondary schools, though an ever-increasing number of female students are now also using it due to social change.

Gender-based oral speech variations are found in Arabic-speaking communities. Makkan males are found to adopt more formal linguistic variants in their WhatsApp messages than their female counterparts, who tend to use more informal "locally prestigious" linguistic variants.

Among Garifuna (Karif) speakers in Central America, men and women often have different words for the same concepts.

In Ireland, deaf men and women studied in two separate schools throughout the 19th and 20th centuries. Lack of contact between the two groups led to the development of gender-specific varieties of Irish Sign Language.
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