- introducing the second element in a comparison, following an adjective or adverb in the comparative degree: if the first element is a subject, object, predicate nominative, etc., the second element is construed in the same way: [he is taller than I; she arrived earlier than the others; Mom liked you better than me]: sometimes, informally, this use of than is construed as a preposition and the second element as its object [he is taller than me]
- expressing exception, following an adjective or adverb: none other than Sam
- when: used esp. following an inverted construction introduced by scarcely, hardly, barely, etc.: scarcely had I seen her than she spoke to me
- indicating difference or distinction, as:: this mainly informal use of than with different and differently is objected to by some
- introducing an adverbial clause: Paris was different than I'd thought it would be
- linking nouns or pronouns: her story is different than his
Origin of than
Middle English than, thene, thonne from Old English thenne, thanne, thonne, origin, originally , then: for Indo-European base see that