Can I get help with Disemvowel coding challenge

def disemvowel(word):
    vowel=['a', 'e', 'i', 'o', 'u']
    for letter in word:
        # Here, you checked to see if the list, vowel, was inside if your word variable
        # Rather, you should take advantage of your loop though word and see if each
        # letter is inside your list of vowels, or your vowel variable
        # Remember for this challenge, you want it to work for upper and lower case variables
        # one way to do this is to use .lower() on your letters you looped through
        # this way, they will all be lower case just like the vowels in your vowel list
        if vowel in word:
            # so here, you want to replace the letter variable with an empty string
            # so word.replace(letter, '')
            word = word.replace(vowel, '')
    return word

def disemvowel(word):
    vowel=['a', 'e', 'i', 'o', 'u']
    for letter in word:
        if letter.lower() in vowel:
            word = word.replace(letter, '')
    return word