This is the 2542nd most frequent Arabic word.
أعظم
"أعظم" means "greatest" or "most magnificent."
In this sentence, 'أعظم' is used as an adjective describing the supreme quality of the noun 'عجائب' (wonders).
الأهرامات من أعظم عجائب العالم.
The pyramids are among the greatest wonders of the world.
Here, 'أعظم' is an adjective indicating the superior rank of 'الصفات' (qualities) in a comparative sense.
يعتبر التفاني في العمل من أعظم الصفات التي يتحلى بها الإنسان.
Dedication in work is considered one of the greatest qualities a person can have.
In this usage, 'أعظم' modifies the noun 'إنجاز' (accomplishment) to express it as the utmost significant in terms of value or impact.