surtax /sûrˈtaks/

1. An additional tax
2. Tax payable on incomes above a certain high level (term not in official use in this sense)

1. To tax additionally
2. To charge surtax

• difference
• differenced
• difference of opinion
• differences
• difference tone
• difference tones
• differencied
• differencies
• differencing
• differency
• differencying
• different
• differentia
• differentiability
• differentiable
• differentiae
• differential
• differential calculus
• differential coefficient
• differential coefficients
• differential equation
• differential equations
• differential gear
• differential gears
• differentially