To pronounce, announce, utter, say, or clearly indicate, as though officially, or with authority, or bearing formality.

Got the covid-19 vaccine

Declare: short for Declaring my independence. Used as a slang term for smoking Cannabis, due to the fact that the United States Declaration of Independence was drafted on hemp paper. The phrase originated from the International School of Indiana, located in Indianapolis.

Note: declaration can be used as a noun as a slang for cannabis