ENUM is a computer term, short for "Enumerated". It is pronounced /ˈiːnʌm/ (ee-num), with the stress on the first syllable 'ee'. The first letter 'e' is pronounced like the letter 'i' in the word 'it'. The second syllable 'num' is pronounced with a short 'u' sound like the word 'sun'. The spelling of 'ENUM' is based on the combination of two words "enumerated" and "number". The word has been popularized by programmers and developers as a way to define a particular data type.