surcharge

"Our airline tickets cost twenty dollars more than we expected because we had to pay a fuel surcharge."

"The taxi driver added a huge, unexpected surcharge to our fare because he knew we were tourists and didn't know the standard price. "

"During the economic crisis, the post office applied a surcharge to existing stamps, raising their value so people could still mail letters without buying entirely new stamps. "

"The artist used a thin, light-blue surcharge over the dark-green ground of the painting. "

"The unexpected surcharge on my electricity bill was due to a previous credit I received for overpayment. "

"The trustee faced a surcharge because of poor investment decisions, failing to diversify the portfolio as expected. "

"The surcharge of extra homework over the weekend made it difficult for the students to relax. "

"Farmer Giles was fined for a surcharge after he allowed more sheep to graze on the common land than his agreement permitted. "

"The airline will surcharge passengers for checked baggage exceeding the allowed weight. "

"to surcharge an animal or a ship; to surcharge a cannon"

"The farmer was fined for surcharging his cattle onto the common pasture; he put too many animals there, exceeding the permitted number and damaging the grass. "

"The auditor decided to surcharge the accountant's report after discovering that a significant charitable donation had been omitted, thus denying the company a rightful tax credit. "