"Than" is a grammatical particle serving as both conjunction and preposition in the English language. It introduces a comparison, and as such is associated with comparatives, and with words such as more, less, and fewer. Typically, it seeks to measure the force of an adjective or similar description between two predicates. Usage Usage prescriptionists apply a number of rules concerning than that those who don't wish to be edited or corrected may wish to note. These prescriptive grammarians say… (More on Than)