The term "concessional" refers to something that is granted as a privilege or favour, usually with certain conditions attached. Some synonyms for this word include "discounted," "reduced," "subsidised," "preferential," "privileged," and "special." An example of a concessional rate would be a discount given to students or senior citizens. Another example is a concessionary loan or grant given to developing countries by international bodies such as the World Bank. These synonyms are useful for expressing the concept of a benefit or favour that is granted to a particular group or individual, often as a means of promoting economic growth or social justice.