An Up Bar is a bar with a Higher High (HH) and a Higher Low (HL) than the previous bar. Next see Up trend.
A Down Bar is a bar with a Lower High (LH) and Lower Low (LL) than the previous bar. Next see Down trend.
An inside bar has a narrower range relatively to the previous bar's range: its High is lower (LH: Lower High) than the previous bar's High and its Low is higher (HL: Higher Low) than the previous bar's Low.
An outside bar has a greater range relatively to the previous bar's range: its High is higher (HH: higher High) than the previous bar's High and its Low is lower (LL: Lower Low) than the previous bar's Low.
Part of Action (Price or Market Action)