MEANING: noun: A pricing model in which the basic product or service is free, but extra features must be paid for.
adjective: Relating to such a model.

ETYMOLOGY: A blend of free + premium. Earliest documented use: 1994.

USAGE: NOTES: A.Word.A.Day uses a freemium model. The free version includes sponsors’ messages, premium version doesn’t.

FEEMIUM - "postage and handling"

FLEEMIUM - what you give the guard to look the other way while you escape

FREEMUM - seasonal plants available at no charge