open
— Noun
– English
~ a tournament in which both professionals and amateurs may play
open interval
— Noun
– English
~ an interval that does not include its endpoints
open fracture
— Noun
– English
~ bone fracture associated with lacerated soft tissue or an open wound
open-end investment company
— Noun
– English
~ a regulated investment company with a pool of assets that regularly sells and redeems its shares
open-angle glaucoma
— Noun
– English
~ glaucoma caused by blockage of the canal of Schlemm; produces gradual loss of peripheral vision; "open-angle glaucoma is the most common type of glaucoma"
open-air market
— Noun
– English
~ a public marketplace where food and merchandise is sold
open chain
— Noun
– English
~ a chain of atoms in a molecule whose ends are not joined to form a ring
open house
— Noun
– English
~ an informal party of people with hospitality for all comers
open letter
— Noun
– English
~ a letter of protest; addressed to one person but intended for the general public
open
— Noun
– English
~ a clear or unobstructed space or expanse of land or water; "finally broke out of the forest into the open"
open-end fund
— Noun
– English
~ a regulated investment company with a pool of assets that regularly sells and redeems its shares
open account
— Noun
– English
~ credit extended by a business to a customer
open
— Noun
– English
~ information that has become public; "all the reports were out in the open"; "the facts had been brought to the surface"
open
— Noun
– English
~ where the air is unconfined; "he wanted to get outdoors a little"; "the concert was held in the open air"; "camping in the open"
open door
— Noun
– English
~ freedom of access; "he maintained an open door for all employees"
open-air marketplace
— Noun
– English
~ a public marketplace where food and merchandise is sold
open frame
— Noun
– English
~ any frame in which a bowler fails to make a strike or spare; "the break in the eighth frame cost him the match"
open account
— Noun
– English
~ an unpaid credit order
open fire
— Verb
– English
~ start firing a weapon
open
— Verb
– English
~ start to operate or function or cause to start operating or functioning; "open a business"