This is the 6254th most frequent Arabic word.
أسهل
Easier.
'الأسهل' is used ironically to emphasize the challenge of learning a new language.
تعلم لغة جديدة ليس بالأمر الأسهل.
Learning a new language is not the easiest thing.
'أسهل' acts as a comparative adjective modifying the solution.
هذا الحل أسهل وأفضل.
This solution is easier and better.
'الأسهل' is a superlative adjective describing the ways for learning.