Instructions: Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.
Input: I have just seen an email containing the phrase 'Without further adieu'; I always thought it was 'Without further ado.' Which is it?.
Output:
The common idiom is, 'Without further ado.' The words at play here are ado: fuss, esp. about something that is unimportant And adieu: another term for goodbye