This is the 3215th most frequent Arabic word.
باب
Door.
In this sentence, 'باب' refers to a literal door, showcasing its use as a concrete noun.
فتحتُ الباب لاخي عندما وصل.
I opened the door for my brother when he arrived.
Here, 'باب' figuratively means a 'chapter' or a 'section', displaying its abstract usage.
درستُ باب النحو في الكتاب.
I studied the chapter on grammar in the book.
In this context, 'باب' is used metaphorically to mean 'topic' or 'subject', demonstrating its adaptable connotation.