Women are grammatically included in masculine nouns such as workers (trabajadores), citizens (ciudaddanos), friends (amigos), guests (invitados), etc., all of which are of the masculine gender, but incorporating the feminine gender as well, as is the case with the semantic rib.
النساء متضمّنات نحوياً في الأسماء المذكّرة (عمّال، مواطنين، أصدقاء، مدعوين.