This is the 5322nd most frequent Arabic word.
تنس
"تنس" in Arabic translates to "tennis" in English.
Here, 'تنس' refers to the sport.
هل تحب لعب التنس؟
Do you like playing tennis?
In this context, 'تنسَ' derived from the verb 'نسي' means 'forget'.
لا تنسَ أن تحضر كتابك.
Don't forget to bring your book.
Here, 'تنس' refers to muscle tension, derived from a different linguistic root.