複写 is the word used often in Korea. It is 복사 in Korean, pronounced as "boksa". The pronunciation is kind of similar to the one in Japanese, so it would not be that difficult to memorize. There are a lot of word whose pronunciation is very similar both in Korea and Japan. For example, 간단 means "simple", pronounced as "gandan", which sounds almost the same as the Japanese word for it. We call "copy and paste" "복사 붙여넣기". It is usually said as "복붙", combined one of the first letter of each.
