No only is it allowed, It’s Encouraged!...........................
When I was in the ninth grade everyone was writing down `antidisestablishmentarianism’ in their textbooks as proof that they now knew the longest word in the English language.
It isn’t, but it is. There are words with more letters, but this is the longest meaningful word in English as it refers to the disestablishing of the Anglican Church in England, meaning it was no longer a state religion.