昭 is built from the 日 and 召 components.
It reads ショウ like 召, as do 招, 紹, 照, and 沼 — learn 召 once and the family's reading comes with it.
A common word using 昭 is 昭 (しょう), meaning “nth year in the Shōwa era (1926.12.25-1989.1.7)”.
Don't confuse it with 招, 紹, 照, and 沼.
