1. making an offer or suggestion to someone, especially one of a sexual or romantic nature
Usage: present participle of 'proposition'; often implies an unwelcome or inappropriate advance

1. the act of making a proposal or suggestion, particularly one of a sexual or romantic nature
Usage: gerund form of 'proposition'

Examples

• She was uncomfortable after he started propositioning her at the office party.
• The propositioning of employees by management is against company policy.
• He was fired for propositioning a coworker.
• The detective was undercover, and the suspect began propositioning her.
• Propositioning strangers on the street is considered harassment in most places.