This is the 84th most frequent Arabic word.
أعلنت
"Announced."
The word 'أعلنت' is used here to indicate the action of making a formal declaration by the company.
أعلنت الشركة عن إطلاق منتج جديد.
The company announced the launch of a new product.
The word 'أعلنت' is used here to describe the formal action of declaring modifications by the government.
أعلنت الحكومة عن تغييرات في القوانين.
The government announced changes to the laws.
The word 'أعلنت' in this sentence describes the act of providing public or official information by the school.