Both initialisms and acronyms are formed to a certain extent fro

Both initialisms and acronyms are formed to a certain extent from initial letters. Is there any difference between them? Illustrate your point with examples.
【正确答案】：Acronymy is the process of forming new words by joining the initial letters of names of social and political organizations or special noun phrases and technical terms. Words formed in this way are called initialisms or acronyms, depending on the pronunciation of the words.