The term "busy season" typically refers to a period of time when a business or industry is experiencing high demand or a flurry of activity. However, there are plenty of other terms that can be used to describe this same concept. Some synonyms include peak season, high season, rush hour, crunch time, peak period, peak time, and heavy traffic season. Each of these phrases can be used to convey the idea that a particular time of year is particularly demanding when it comes to work or other obligations. No matter which phrase you choose to use, the important thing is to convey that this is a time when things are busier than usual.