| Subject | English | Irish |
| ed. | theory of adult education | aindreolaíocht |
| econ., market. | theory of comparative advantage | teoiric an bhuntáiste chomparáidigh |
| environ. | theory of money A coherent group of general propositions about the supply and demand of money, interest rates, the flow of money's influence on the overall economy or the policies that should be adopted by institutions controlling the money supply | teoiric an airgid |
| environ. | theory of the environment A structured simulation or explanation based on observation, experimentation and reasoning that seeks to demonstrate, characterize or explain the actions and interactions of the total surrounding conditions of a given system | teoiric an chomhshaoil |
| environ. | theory of the welfare state A political conception of government in a capitalist economy where the state is responsible for insuring that all members of society attain a minimum standard of living through redistribution of resources, progressive taxation and universal social programs, including health care and education | teoiric an stáit leasa shóisialaigh |