synonym
n
word or phrase with the same meaning as another in the same language, though perhaps with a different style, grammar or technical use 同义词; 同义词组; 同义语
`Slay' and `kill' are synonyms. slay 和 kill 是同义词.
Pierre and I borrowed the money and bought the necklace. During the next ten years we both worked day and night to pay back the money we had borrowed. That's why I now look so old. Well, after all these years we've at last paid back all the money.