What is another word for "open"?

Roget's Thesaurus (1911) lists these synonyms for "open": about, abra, abracadabra, absence, abysm, abyss, accoucheur, accoucheuse, account, accredit, advance, advisedly, aerial, aeriform, aerography, aerology, aerometer, aerometry, aeronaut, aeronautics, aeroscope, aeroscopy, aerosphere, aerostation, aforementioned, aforesaid, aforethought, against, agency, agnus, aid, air, airy, alienate, alienation, alkali, all, alluvial, along, altogether.