Among all the anti-Trump adverts, it might be one billboard written in Arabic which could have the greatest impact.

The billboard on a highway in Michigan has the words “Donald Trump” at the end.

Read from right to left, it translates as “Donald Trump, he can’t read this, but he is afraid of it”, as reported by the Detroit Free Press.

The sign was put up last weekend and is funded by the Nuisance Committee super PAC, which was founded by the creator of the card game Cards Against Humanity. It has reportedly raised more than $410,000.

A spokeswoman for the committee told the newspaper that the sign went up in Dearborn, Michigan, due to the high percentage of Arab Americans living in a crucial battleground state.

“We came up with it because we believe that Donald Trump's hateful rhetoric is not based on reality. It's based in fear,” Melissa Harris told the newspaper.

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“And we think that irrational fear is what's driving his anti-immigrant message.”

She said the sign will remain until election day, and she hopes it will prompt conversation among Americans who want to find out what the wording means.

Mr Trump called for a temporary ban of all Muslims entering the US in December 2015 and repeatedly defended the ban, pointing to radical Islamic terrorist attacks around the world.

He also called for “extreme vetting” of Muslims and refugees at the second presidential debate.