This is the 6253rd most frequent Arabic word.
أسمائهم
"Their names."
The word 'أسمائهم' refers to the 'names of them' (their names), applied in the context of the students mentioned in the sentence.
سأل الأستاذ الطلاب عن أسمائهم.
The teacher asked the students about their names.
The word 'أسمائهم' is used to indicate possession, referring to the names of the people being discussed, implying the act of documenting them.
كتب الكاتب أسمائهم في القائمة.
The writer wrote their names in the list.
The word 'أسمائهم' here denotes the inability to recall the names of the individuals in question, expressing a personal experience.