-what does the word "nuisance" mean?-It means someone or something that ___ you feel unhappy.

makes
从句中主语为someone or something,
根据邻进原则,something为单数,以它来确定主语为单数,所以动词使用第三人称单数形式主语是两个用 or 连接的名词，谓语动词要和邻近的名词保持一致，对吗？是的,这就是邻近原则~~~~~~~~~~~~~~~~~~~~~祝你进步，有疑问可追问，请及时采纳~~~~~~~~~~~~~~~~~~~~