1. (noun) a price that is too low

• charge

2. (noun) an insufficient charge

• burster
• bursting charge
• charge
• explosive charge

3. (verb) charge (someone) too little money

• bill
• charge

1. (verb) charge (someone) too little money

• fleece
• gazump
• hook
• overcharge
• pluck
• plume
• rob
• soak
• surcharge