Child Marriage, Waiting Period Quran 65:4
Word are used with different context to give different meanings. The verses where nisa is used for minor girls is against the baby boys who were slaughtered by Pharaoh. Take another example, it is said there are two genders: man and woman. Here man and woman includes men and women of all ages. But when it is said he married a woman. Or a woman is in her waiting period. No one can magne that it might be a minor girl. If in such cases a minor girls is involved, one has to indicate it separately.