The word 胁迫 (xiépò), meaning "to coerce" or "to force under duress," is a compound word formed by combining two characters with related meanings. The first character, 胁 (xié), originally referred to the armpit or side of the body, but by extension came to signify "to threaten" or "pressure from the side," implying intimidation or the use of one's influence. The second character, 迫 (pò), means "to compel," "to press," or "to force." When combined, 胁迫 creates a synergistic term where 胁 conveys the aspect of applying pressure or threat, and 迫 adds the dimension of compelling action, resulting in a complete concept of forcing someone to do something through intimidation or threats, a meaning more specific and intense than either character alone.