Flu-like symptoms are a set of symptoms that are similar to those of the flu, such as fever, chills, body aches, and fatigue. The two crossword solutions for this term are AGUES (5 letters) and AGUE (4 letters). Agues is an archaic term for a fever or chill, while AGUE is an old-fashioned word for a fever or chill accompanied by shivering. Both terms refer to the same set of symptoms, which are commonly associated with the flu.