博

The glyph operates across three primary semantic poles:

1. Breadth and Scope: Denotes a wide-ranging or comprehensive quality, typically referring to breadth of content, variety, or accumulation (e.g., polymathic knowledge).

2. Gambling and Gaming: To play games of chance or skill; to wager. This encompasses both the recreational activity and the act of risking assets on an uncertain outcome.

3. Striving and Contention: Struggling for a result, contending with another, or attempting to seize an advantage through effort or risk.

• Verb: Transitive. [博 + Object] (e.g., to gamble for X; to strive/contend for X).
• Adjective: Used as a modifier for capacity, learning, or knowledge.

Contrast with 廣: where 廣 often describes physical width or extension, 博 generally describes the scope of learning, experience, or capacity.

// Readings: Fanqie 補各 (Tang-period //bɑk bɑk*).

• Variants: U+613D is a graphical variant with no shift in meaning.

The sense of "striving" often acts as a bridge between the concepts of gambling (risking for a gain) and breadth (accumulating wide-ranging knowledge/experience).