Understanding Idioms

We describe a language understanding model in which idioms, like other units of linguistic knowledge, are treated as constructions linking elements of form with elements of meaning. They may also, however, invoke additional metaphorical mappings that can actively constrain both the interpretation and acceptability of idiomatic expressions. A wide variety of idiomatic phenomena, including compositional and non-compositional idioms, syntactic flexibility and modification can be explained within this framework.