The word 赚钱 is formed by directly combining two meaningful characters: 赚, which means "to earn" or "to make a profit", and 钱, which means "money". It is a straightforward, conceptual compound where the action (earning) is attached to its direct object (money), creating a single unit that visually and semantically represents the idea of "generating monetary gain". This formation is intuitive, painting a complete picture of the activity by simply joining the verb and its target.