con·ces·sion·ar·y
adjective/kənˈseʃənəri/
/kənˈseʃəneri/
[usually before noun] (British English)- costing less money for people in particular situations; given as a concession
（在某种情况下）花费少的；优惠的；减价的 - concessionary rates/fares/travel
优惠费率／票价／旅行
Oxford Collocations DictionaryConcessionary is used with these nouns:- fare
- travel
- concessionary rates/fares/travel