half-price
US /ˌhæfˈpraɪs/
UK /ˌhæfˈpraɪs/

1.
at half of the usual or original price
:
•
The store is having a sale, everything is half-price.
•
I bought these shoes at half-price during the clearance sale.
1.
costing half of the usual or original price
:
•
They are offering half-price tickets for students.
•
It's a great deal, a half-price meal at that restaurant.