The main language spoken here is Korean. However, like most places in South Korea, the people in Busan use a slightly different dialect and have a different accent. Although I am not a fluent Korean speaker, I could distinguish the Busan accent and dialect when I spoke to people in the area. In Korea, they call the regional dialects 사투리 (satoori). Satoori is a set of words, phrases, grammar, and pronunciation patterns used within a specific region of Korea. For instance, in Seoul, people usually use the word 음식 (eum-sik) to describe food, but in Busan, they say 엄식 (eom-sik). Although this is a relatively minor difference, you can still make it out when talking.
Like the rest of Korea, Busan also uses the South Korean won. The won consists of both paper money and coins. The bills usually come in 1,000, 5,000, 10,000, and 50,000 denominations. As of now, one United States Dollar equals 1,403.11 South Korean won. Usually, with 1,403 won, you can buy chips, a bottle of water or a steamed red bean bun.
Bottled water can cost anywhere from 600 won to 2,000 won, depending on the brand and type of water. The least expensive water is 제주 삼다수 (Jeju Samdasoo). I usually do not purchase any unless I leave my refillable water bottle at the dorm.
