This is the 865th most frequent Arabic word.
الإلكتروني
Electronic.
In this sentence, 'الإلكتروني' functions as an adjective to describe the noun 'الكتاب' (book), indicating that the book is in an electronic format.
الكتاب الإلكتروني مفيد للدراسة.
The electronic book is useful for studying.
Here, 'الإلكتروني' is employed as an adjective modifying 'جهاز كمبيوتر' (computer system), emphasizing its feature of electronic operation.
أشتريت جهاز كمبيوتر إلكتروني جديد.
I bought a new electronic computer.
'الإلكترونية' is used as an adjective describing 'الألعاب' (games), referring to the digital nature of the games conducted via electronic devices.