without
with·out
I
 /wıˈðaʊt, wıˈθaʊt/  prep  
  1 : not having or including (something)
   Do you take your coffee with or without sugar?
   Don't leave home without your wallet.
   Without water, there would be no life on Earth.
   a world without war
   They were without electricity [=they did not have electricity] for a week after the storm.
   She's the one without the hat. [=the one who is not wearing a hat]
   I can't imagine life without a car.
   They fought without fear. [=they were not afraid when they fought]
   They managed to finish it without (experiencing) any difficulty.
   She survived the accident without serious injury. [=she was not seriously injured]
   It happened suddenly and without warning.
   He disappeared without a trace. [=there was no trace of him after he disappeared]
   We kept trying without success. [=we kept trying but we did not succeed]
   The prisoner will be held without bail until his trial.
   Applicants are considered without regard for age, race, religion, or sex. [=an applicant's age, race, religion, or sex are not important]
  2
  — used to say that someone is not with or is not involved with another person or group
   He went to the store without her.
   Please don't make a decision without me.
   I couldn't have done it without you. = I couldn't have done it without your help.
   We would have lost that game without her.
  3 : not using (something specified)
   These cookies are made without flour.
   Try doing the math without a calculator.
   I can't see you without my glasses.
  4 : not doing something specified
   They left without (even) saying goodbye. [=when they left they did not say goodbye]
   Without realizing it, he told them his secret.
   Without wishing to [=although I do not wish to] speak ill of the dead, he wasn't a very nice person.
   Even without studying, she answered all of the questions correctly.
   I can concentrate better without (having) the television on.
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II
  adv  
  : not having something
   Do you take your coffee with sugar or without?
  do without — see do, 1
  go without — see go, 1