Synonym Boundary: "すみません", "しつれいします", "お先に", "言い訳"

When expressing "excuse" in Japanese, you must carefully distinguish between "すみません", "しつれいします", "お先に", "言い訳" based on context.

• すみません (すみません (sumimasen) - Level: N5): Maps to "Excuse me; I'm sorry; Thank you." and is used when A versatile phrase. Can be used to apologize, get attention, or express gratitude.
• しつれいします (しつれいします (shitsurei shimasu) - Level: N5): Maps to "Excuse me; Sorry to bother you; Goodbye (when leaving someone's office/home)" and is used when Literally 'I'm committing a rudeness.' Used when entering/leaving a room, interrupting someone, or asking to pass by. It's a polite apology for a potential inconvenience..
• お先に (おさきに (osaki ni) - Level: N3): Maps to "Excuse me for going/leaving first; After you" and is used when Used when leaving before others or doing something before others, expressing a slight apology or courtesy. Also used to politely offer someone to go first.
• 言い訳 (いいわけ (iiwake) - Level: N3): Maps to "excuse, explanation" and is used when Often used for giving reasons to avoid responsibility or for a minor mistake. Can have a negative connotation..

Mixing these up can easily lead to unnatural translations. Refer to the bilingual context cards below to master the boundaries!