From King Dictionary of Contemporary English prerequisite pre‧req‧ui‧site / priːˈrekwəzət / noun [countable ] formal CONDITION/something THAT MUST BE DONE something that is necessary before something else can happen or be done prerequisite for/of/to A reasonable proficiency in English is a prerequisite for the course. Examples from the Corpus prerequisite • As for relations with the public, rudeness seems almost a prerequisite of government employment. • Having reliable data for the current year is, of course, a prerequisite of good budgets. • Some knowledge of the French language is a prerequisite for employment there. • At one time, physical presence was a prerequisite for first-hand experience. • As a practical matter, a receipt showing the amount of the expense is an absolute prerequisite to substantiating a travel expense. • A minimal degree of integration is therefore a functional prerequisite of society. • The only important prerequisite is that there must be light: they do not thrive in dark tanks. • Adequate food and shelter are the minimum prerequisites of a decent life. • What are the prerequisites before counselling another human being? • All too often these prerequisites were withheld, especially but not exclusively in the early stages of the Programme. prerequisite for/of/to • Encryption technology is seen as a prerequisite for widespread commercial use of computer networks. • A previous knowledge of computing may be of some advantage initially but is not a prerequisite for entry to the course. • Therefore acid inhibition is not a prerequisite for the hyperplasia. • As a practical matter, a receipt showing the amount of the expense is an absolute prerequisite to substantiating a travel expense. • Urbanisation, another prerequisite for industrial growth, destroys farmland. • A minimal degree of integration is therefore a functional prerequisite of society. • The main prerequisite for success is old, clean water. • Universities and high schools will establish literacy action as an option or prerequisite for certain students.