In the economic sense:

Short-term, general trading 1-5 trading days, within one week can be called short-term; Mid-line, usually trading within 3 months, this can be called mid-line trading; Long-term, generally refers to traders who hold for more than one year, and can be called long-term

However, in futures trading, short-term trading is the most common. Generally, the short-term trading of retail investors is dominated by 1 minute cycle, 3-minute cycle, 5-minute cycle, 15-minute cycle and 30-minute cycle.