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

• laughable
• laughableness
• laughablenesses
• laughably
• laugh all the way to the bank
• laugh and lay down
• laugh and lie down
• laughed
• laugher
• laughers
• laughful
• laughier
• laughiest
• laughing
• laughing gas
• laughing gear
• laughing hyena
• laughing hyenas
• laughing jackass
• laughing jackasses
• laughingly
• laughings
• laughing stock
• laugh in one's sleeve
• laugh in someone's face