【正确答案】正确答案：Generally speaking, synonyms are the words which have different forms but similar meaning. There are several types of synonyms: dialectal synonyms, such as lift/elevator, flat/apartment; synonyms of different styles, as shown in gentleman/guy; synonyms of different registers, such as salt/sodium chloride', synonyms differing in affective meaning, such as attract/seduce; synonyms differing in collocation, such as beautiful/handsome, able/capable.