This is the 495th most frequent Arabic word.
رجال
"رجال" means "men" in English.
In this sentence, 'رجال' refers to a collective group of adult males participating in the action of building the city.
هؤلاء الرجال يعملون بجد لبناء المدينة.
These men work hard to build the city.
In this context, 'رجال' is employed to describe individuals exemplifying the qualities traditionally associated with manhood.
الرجال الحقيقيون يظهرون قوتهم بتصرفاتهم النبيلة.
True men show their strength through noble acts.
Here, 'رجال' is used within a title of a literary work, denoting its subjects or characters.