1. pirate

Today we are going to learn “pirate”. One of its meaning is that someone who dishonestly copies and sells another person’s work.
(1) Computer game pirates cost the industry twenty million pounds a year.
(2) Computer crimes include data theft and pirating software.

2. sneaker

Another word is “sneaker”. It means a type of light soft shoe with a rubber sole; someone acting as an informer or decoy for the police.
(1) A smelly shoe or sneaker is no match for the power of baking soda.
(2) Look, there are some sneakers at the Customs House.