Answer the following questions.Your answers should be clear and short.How many types are there in word-meaning changes?
THERE ARE FIVE TYPES IN WORD-MEANING CHANGES: (1)EXTENSION OF MEANING；(2)NARROWING OF MEANING；(3)ELEVATION；(4)DEGRADATION；(5)TRANSFER. OF THESE, EXTENSION AND NARROWING ARE BY FAR THE MOST COMMON.
