Hearing it rain - Millikan on language learning

In her ‘Spracherwerb’(2012) Ruth Millikan gives a compelling account of language acquisition based on our ability to track objects. I argue that, and how, it is undermined by her insistence on equating understanding language utterances and sense perception, point to idealist hazards, and plead against propositionality and for imagism in order to safeguard the account’s important potential for giving a comprehensive explication of meaning.