Background: The metalinguistic ability to cope with homonyms, that is, words having multiple unrelated meanings, emerges rather late in the course child language development. It is associated with specific neural activity and related to academic achievement and second language learning. This study is about homonyms that are at the same time…

Formal definitions are one example of "decontextualized" language use, in which reliance on background knowledge shared with the interlocutor is minimized, and use of conversational devices is avoided. Definitions of English nouns by 137 second- to fifth-grade children, about half of whom were non-native English speakers, were analyzed…