• FRECKLE (noun) The noun FRECKLE has 1 sense: 1. a small brownish spot (of the pigment melanin) on the skin. Familiarity information: FRECKLE used as a noun is very rare. • FRECKLE (verb) The verb FRECKLE has 2 senses: 1. become freckled. 2. mark with freckles. Familiarity information: FRECKLE used as a verb is rare.