¡ábrete sésamo!

Part Of Speech: adjective

Definition: Not closed

Definition: Not physically drawn together, closed, folded or contracted; extended

Example: an open hand; an open flower

Definition: Actively conducting or prepared to conduct business.

Example: Banks are not open on bank holidays.

Definition: Receptive.

Example: I am open to new ideas.

Definition: Public

Example: He published an open letter to the governor on a full page of the New York Times.

Definition: Candid, ingenuous, not subtle in character.

Example: The man is an open book.

Definition: (of a formula) Having a free variable.

Definition: (of a set) Which is part of a predefined collection of subsets of X, that defines a topological space on X.

Definition: (of a walk) Whose first and last vertices are different.

Definition: (of a file, document, etc.) In current use; mapped to part of memory.

Example: I couldn't save my changes because another user had the same file open.

Definition: Not fulfilled.

Example: I've got open orders for as many containers of red durum as you can get me.

Definition: Not settled or adjusted; not decided or determined; not closed or withdrawn from consideration.

Example: an open question

Definition: (stringed instruments) Of a note, played without pressing the string against the fingerboard.

Definition: (wind instruments) Of a note, played without closing any finger-hole, key or valve.

Definition: Not of a quality to prevent communication, as by closing waterways, blocking roads, etc.; hence, not frosty or inclement; mild; used of the weather or the climate.

Example: an open winter

Definition: (Of correspondence) Written or sent with the intention that it may made public or referred to at any trial, rather than by way of confidential private negotiation for a settlement. (Opposite of "without prejudice")

Example: You will observe that this is an open letter and we reserve the right to mention it to the judge should the matter come to trial.

Definition: Uttered with a relatively wide opening of the articulating organs; said of vowels.

Definition: Uttered, as a consonant, with the oral passage simply narrowed without closure.

Definition: (of a syllable) That ends in a vowel; not having a coda.

Definition: Made public, usable with a free licence and without proprietary components.

Definition: Resulting from an incision, puncture or any other process by which the skin no longer protects an internal part of the body.