Time frame
Definition
Trends can be classified as primary, intermediate and short-term. However, markets exist in several time frames simultaneously. As such, there can be conflicting trends within a particular stock depending on the time frame being considered. It is not out of the ordinary for a stock to be in a primary uptrend while being mired in intermediate and short-term downtrends.
A swing trader, who focuses on daily charts for decisions, could use weekly charts to define the primary trend and 60-minute charts to define the short-term trend.
A day trader could trade off of 15-minute charts, use 60-minute charts to define the primary trend and a five-minute chart (or even a tick chart) to define the short-term trend.