No output in 'english word generator'

[DeGerlash]

This seems to work too, is it correct?

def isValid(word):
    file = open("AllEnglishWords.txt", "r")
    if word in file.read():
        return True
    else:
        return False

print(isValid("\n"+word+"\n"))

I adjusted the file with two 'enters' at the beginning and the end of the file.