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one-way

[wuhn-wey] /ˈwʌnˈweɪ/
adjective
1.
moving, or allowing movement in one direction only:
a one-way street.
2.
valid for travel in one direction only:
a one-way ticket.
Compare round trip.
3.
without a reciprocal feeling, responsibility, relationship, etc.:
It's a one-way friendship.
4.
not intended for return to a seller, dealer, etc., for reuse; disposable:
one-way bottles.
Origin
1815-1825
1815-25
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for oneway
  • Parking fees are steep and a great number of streets are closed to cars or are oneway.
  • A better package contains a oneway valve, which prevents air from entering.
British Dictionary definitions for oneway

one-way

adjective
1.
moving or allowing travel in one direction only: one-way traffic
2.
entailing no reciprocal obligation, action, etc: a one-way agreement
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for oneway

one-way

adj.

1906, in reference to travel tickets; 1914 in reference to streets; 1940 in reference to windows, mirrors, etc.; from one + way.

Online Etymology Dictionary, © 2010 Douglas Harper
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