Define the following term：extension of meaning

Define the following term：extension of meaning

EXTENSION OF MEANING, ALSO KNOWN AS GENERALIZATION, IS THE NAME GIVEN TO THE WIDENING OF MEANING WHICH SOME WORDS UNDERGO. IT IS A PROCESS BY WHICH A WORD WHICH ORIGINALLY HAD A SPECIALIZED MEANING HAS NOW BECOME GENERALIZED. IN OTHER WORDS, THE TERM HAS EXTENDED TO COVER A BROADER AND OFTEN LESS DEFINITE CONCEPT.