Some of them define faith as “belief without evidence,” “irrational belief in something despite all evidence to the contrary,” and “belief not supported by evidence or reason, but assumption alone.”
Others define it as “pretending to know things that you don’t know,” “glorified ignorance,” and “the ability to believe in something in which there is no physical evidence that even exists.”
I spent 30 minutes searching for current definitions online from a wide variety of non-religious sources. Each is the ‘first’ definition listed by each source. Take a look and see if the atheist definitions line up with the rest of the world.