The kanji 塁 primarily signifies a "base," "fort," "fortification," or "home plate" in baseball. It generally relates to a place of protection or a starting/ending point. It can also imply a foundation or something that serves as a support.

・On-yomi (音読み): ルイ (rui) ・Kun-yomi (訓読み): None commonly used.

⚫︎一塁 Translation: First base (in baseball) ⚫︎本塁打 Translation: Home run ⚫︎要塞 Translation: Fortress

The kanji 塁 is a 形声文字 (keisei moji), a phono-semantic compound. It combines two elements: 田 (ta), meaning "field" or "rice paddy," and 累 (rui), which conveys a sense of "accumulation" or "piling up." The 田 component subtly suggests a field or area, while 累 provides the phonetic element and hints at the accumulation of earth or materials to build a fortified structure. The resulting image evokes a fortified place or base built within a field. It reflects how fortifications often have walls that are made by accumulating and piling up materials.