The kanji 博 primarily conveys the idea of "extensive," "wide," "broad," or "abundant." It suggests a large scope, a great amount, or a wide range of something, whether it be knowledge, skill, or physical space. It often implies a sense of expertise or being well-informed.

・On-yomi (音読み): はく (haku) ・Kun-yomi (訓読み): None, or used as a component of other words

⚫︎博士 (はかせ) Translation: Doctor, Ph.D. (someone with extensive knowledge) ⚫︎博覧会 (はくらんかい) Translation: Exhibition, exposition (an event showcasing a wide range of items) ⚫︎博愛 (はくあい) Translation: Philanthropy, universal love (a broad and all-encompassing love)

The kanji 博 is a 形声文字 (keisei moji), a phono-semantic compound. The phonetic component is 甫 (ho), which contributes to the sound. The semantic component is 十 plus a component resembling a simplified 寸 (sun). 十 could be thought of as representing numerous points. The components combine to suggest a wide-reaching net or something that is spread out broadly. Over time, the character evolved to represent the concept of extensiveness and breadth.