open
UK: ˈəʊpən | US: ˈoʊpən
adj. not closed or blocked; allowing access
adj. ready for business or accessible to the public
vt. to move or adjust something so that it is no longer closed
vi. to become no longer closed or sealed
The word "open" traces back to Old English open, meaning "not closed" or "exposed," derived from Proto-Germanic upana- (to open). It shares roots with Old Norse opinn and Dutch open. The core idea of accessibility or lack of obstruction has remained consistent. The modern spelling preserves the original structure without clear prefix/suffix divisions, making it monomorphic.
She left the door open for fresh air.
The store will open at 9 AM tomorrow.
He struggled to open the jar lid.
The flowers open in the morning sunlight.
The debate is open to all students.