Assalamualaikum! My parents named me 'Meem'. Which is an Arabic letter and doesn't have any meaning. But in Hibrew, it means sea of bitterness. Do I need to change my name?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad, sallallaahu`alayhi wa sallam, is His slave and Messenger.

You do not have to change your name, and you are not legally required to search for its meaning in all languages so it becomes permissible to be used.

We would like to warn the questioner to beware of the whispers as they are a buried disease for those who are afflicted with them, and the effective cure for them is to repel them, neglect them, and to pay no attention to them.

Allah knows best.