【正确答案】：
ALSO CALLED ELEVATION, A TERM REFERRING TO THE PROCESS BY WHICH WORDS RISE FROM HUMBLE BEGINNINGS TO POSITIONS OF IMPORTANCE. E.G. "NICE" USED TO MEAN "IGNORANT", THEN CHANGED TO "FOOLISH" AND NOW ELEVATED TO MEAN"PLEASANT, DELIGHTFUL".
【题目解析】：也称为词义的升华，是指文字从卑微的开始上升到重要地位的过程。例如，“nice”过去是指“无知的”，后来意义改为“愚蠢的”，现在升格为“令人非常高兴的, 令人愉快的”。