Etymology
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one-way (adj.)

1824, "leading in one direction only;" by 1887 in reference to travel tickets or fares; 1914 in reference to streets; 1940 in reference to windows, mirrors, etc.; from one + way (n.).

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Definitions of one-way

one-way (adj.)
moving or permitting movement in one direction only;
one-way streets
a one-way ticket
From wordnet.princeton.edu