What is the meaning of Colonel?

A commissioned officer in an armed military organization, typically the highest rank before flag officer ranks (generals). It is generally found in armies, air forces or naval infantry (marines).

To act as or like a colonel.

a colonel, highest commissioned officer below generals

an ice cream dessert consisting of lemon sherbet and vodka

colonel (military officer above lieutenant-colonel and below all generals)

glyph (a letter in a type of font)

Source: wiktionary.org