Final answer:
Fast Mapping is the process where a student notices a new verb or infers meaning from context, playing a critical role in efficient language acquisition and vocabulary expansion.
Step-by-step explanation:
When a student notices a new verb within a specific frame or infers its meaning from the context, this process is known as Fast Mapping. This linguistic phenomenon allows children to rapidly infer the meaning of a word and remember it after very few exposures, without explicit instruction. It is an important part of language acquisition because it enables efficient vocabulary expansion. Semantic Focusing and Pragmatic Competence are related to understanding meaning and social language use, respectively, while Syntactic Bootstrapping involves using grammatical structure to infer the meaning of new words.