dock

議論を呼びそうな出来事です。
dockはしばしばpay（給与）と共起して、「給与の一部を削る、減らす」という意味があります。（UG）

Female Osaka school clerk's pay docked over tattoos

A 23-year-old woman who works as a school clerk in Osaka has been disciplined for having tattoos.

The woman had her salary cut for one month for violating ethical rules, the Osaka board of education said, NTV reported Friday.

According to the board, the woman got three tattoos from 2012 to 2013: one on her left arm and two on her left ankle. There was an anonymous call to the school complaining about the tattoos, which prompted the board to investigate the case.

NTV reported that the woman has agreed to have her tattoos removed.

http://www.japantoday.com/category/national/view/female-osaka-school-clerks-pay-docked-over-tattoos