This is the 1730th most frequent Arabic word.
مفتوحة
Open.
In this sentence, 'مفتوح' describes the state of the door, indicating it is not closed.
الباب مفتوح.
The door is open.
This usage of 'مفتوح' indicates the operational state of the store.
المتجر مفتوح حتى الساعة العاشرة.
The store is open until 10 o'clock.
Here, 'مفتوح' is used figuratively to describe the receptiveness of the mind.