one-way
🇺🇸
/ˌwʌn ˈweɪ/
🇬🇧
/ˌwʌn ˈweɪ/
going in only one direction
The road is one-way, so you can't go back the same way.
a ticket or trip that you can only go one way with
I bought a one-way ticket to the concert.
not involving a two-way interaction
Their friendship was one-way; she always helped him but he never did anything for her.