Learn the meaning of requirement as a noun in English, with synonyms, examples, and usage in different contexts. Find out how to pronounce requirement and translate it in other languages. REQUIREMENT definition: something that is needed or demanded: . Learn more. Learn the meaning, pronunciation and usage of the word requirement in English. Find out the difference between requirement and related words, such as essential, necessary and obligatory. Learn the meaning of requirement as a countable noun, with synonyms, pronunciation, and usage examples. Find out the difference between requirement and requisite, and explore related words and phrases.