from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. On the outside: a sturdy structure within and without.
- adv. With something absent or lacking: had to do without.
- prep. Not having; lacking: a family without a car.
- prep. Not accompanied by; in the absence of: volunteered without hesitation; spoke without thinking.
- prep. At, on, to, or toward the outside or exterior of: standing without the door.
- n. An outer position, place, or area: a threat to security that came from without.
- conj. Regional Unless: "You don't know about me without you have read a book by the name of The Adventures of Tom Sawyer” ( Mark Twain).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. outside, externally
- adv. Lacking something.
- prep. Outside of, beyond
- prep. Not having, containing, characteristic of, etc.
- conj. Unless, except (introducing a clause).
from the GNU version of the Collaborative International Dictionary of English
- prep. On or at the outside of; out of; not within.
- prep. Out of the limits of; out of reach of; beyond.
- prep. Not with; otherwise than with; in absence of, separation from, or destitution of; not with use or employment of; independently of; exclusively of; with omission.
- conj. Unless; except; -- introducing a clause.
- adv. On or art the outside; not on the inside; not within; outwardly; externally.
- adv. Outside of the house; out of doors.
from The Century Dictionary and Cyclopedia
- On or as to the outside; outwardly; externally.
- Out of doors; outside, as of a room or a house.
- As regards external acts or the outer life; externally.
- Outside of; at or on the exterior or outside of; external to; out of: opposed to within: as, without the walls.
- Out of the limits, compass, range, reach, or powers of; beyond.
- Lacking; destitute of; exempt or free from; unconnected with; independent of: noting loss, absence, negation, privation, etc.: as, to be without money; to do without sleep; without possibility of error; without harm.
- In colloquial language the object is frequently omitted after this preposition, especially in such phrases as to do without, to go without: as, they can give me no assistance, so I must do without.
- Without is sometimes used to govern a substantive clause introduced by that, without that thus signifying unless, except; and then, the that being omitted, it obtains the value of a conjunction (like because, while, since, etc.) in the same sense; but it is now rarely, if ever, used thus by careful and correct speakers and writers.
Middle English withoute, from Old English withūtan : with, with; see with + ūtan, from without (from ūt, out; see out).(American Heritage® Dictionary of the English Language, Fourth Edition)
From Late Old English wiþūtan. with- + out (Wiktionary)