polite: 실례해요 · 실례지만… (excuse me, but…)
excuse me; pardon me (for interrupting)
Example
실례합니다. 화장실이 어디에 있어요?
Excuse me, where is the restroom?
Word parts
실 lose+례 manners
Literally 'losing manners' + 합니다 — 'excuse my rudeness'.
Good to know
실례지만… ('excuse me, but…') is a polite way to start a question to a stranger.