Step 1 : Introduction to the question "How many words in the English language contain two consecutive letter U's?"
... English is a West Germanic language that was first spoken in early medieval England and is now a global lingua franca. Wikipedia Signed forms: Manually coded English; (multiple systems) Language family: Indo-European languages, Germanic languages, MORE Did you know: English is the third-most-spoken language in the world by number of native speakers.
Step 2 : Answer to the question "How many words in the English language contain two consecutive letter U's?"
Of the nine words in the English language that contain two consecutive U's, seven have their roots in Latin: vacuum, continuum, residuum, menstruum, triduum, duumvir and duumvirate. The remaining two words have different origins. "Muumuu" comes from the native Hawaiian language, and "Weltanschauung" has its roots in the German language. All of the words, with the exception of vacuum and continuum, are rarely used or are mostly used only in specialist contexts. Source: En.OxfordDictionaries.com