This is the 66th most frequent Arabic word.
أحد
"أحد" means "one" or "anyone" depending on the context.
In this context, 'أحد' is used as a pronoun meaning 'anyone' to indicate the absence of people.
لا يوجد أحد في القاعة.
There is no one in the hall.
Here, 'أحد' functions as a pronoun referring to an unspecified individual in the context of a question.
هل رأيت أحدًا جديدًا اليوم؟
Did you see anyone new today?
In this case, 'أحد' is used to mean 'one of,' referencing a specific individual from a group.