1. before
2. first; foremost
3. in front
4. the late; deceased
5. one's forebears
6. the abbreviation for Mister or Sir
7. a Chinese family name

1-an honorable title for a teacher 2-name for the elderly and learned 3-Mister; Sir 4-husband

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Excuse me sir, where is the train station?

Hello Mr. Bush.

☺