This is the 628th most frequent Arabic word.
الطفل
The child.
In this sentence, "طفل" is the singular form used to refer to someone's child and is linked with a possessive suffix "ها" indicating 'her' ownership.
طفلها ذكي للغاية.
Her child is very intelligent.
Here "الطفل" emphasizes the general concept of a singular child requiring care, possibly referring to a specific child or children generically.
الطفل بحاجة إلى الحماية.
The child needs protection.
Here, "الطفل" refers to a singular male child as the subject of the sentence, denoting who is participating in the action of playing.