The term 'start, as of symptoms' can be summarized by the word 'ONSET, ' which is a five-letter word. ONSET refers to the beginning of a medical condition or symptom, and is used to describe the time when a person first notices the signs and symptoms of an illness or injury. It is important to note that ONSET does not necessarily refer to the time when the condition or symptom began, but rather the time when it was first noticed.