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

• ippon
• ippons
• ipratropium
• ipratropiums
• iprindole
• iprindoles
• ipse dixit
• ipselateral
• ipsilateral
• ipsissima verba
• ipso facto
• iq
• IQ
• ir
• ir-
• IR
• Ir
• Ir.
• IRA
• iracund
• iracundities
• iracundity
• iracundulous
• irade
• irades