Do you mean "parallelism"?

"parrallelism" is a common misspelling of "parallelism"

How to remember the correct way to spell "parallelism":

An exception to the rule that "a" is followed by a double "r" when the syllable "ar" is stressed.

Test your Spelling • Common Misspellings • Terms of Use • Top Ten Misspellings • Contact DoYouMean