This is the 5560th most frequent Arabic word.
عملا
"عملا" means "a deed" or "an action" in English.
In this sentence, 'عملًا' is used as a noun in an exclamatory phrase to appreciate someone's effort or work.
عملًا جيدًا، استطعت إتمام المشروع في وقته.
Good job, you managed to complete the project on time.
Here, 'عمل' refers to one's employment or occupation. Adding تنوين makes it indefinite.
أنا أبحث عن عملٍ أفضل.
I am looking for a better job.
In this usage, 'عملِ' denotes the act or action of performing maintenance.