The kanji 塁塁 primarily represents a "base," "fortification," or a "home base" in sports like baseball. It signifies a place of safety or a strategic position. It can also imply a strong foundation or a point of progress.

・On-yomi (音読み): ⚫︎ ルイ (rui) ・Kun-yomi (訓読み): ⚫︎ たらい (tarai) - This reading is less common and refers to a type of washbasin.

⚫︎ 一塁 Translation: First base ⚫︎ 本塁打 Translation: Home run ⚫︎ 要塞塁 Translation: Fortress

The kanji 塁塁 is a 会意文字 (かいいもじ - combined ideogram). It is composed of the components 田 (た - field) and 土 (つち - earth/ground). The original meaning was likely a "pile of earth" or a "raised earthen wall" used as a defensive structure. The 田 component suggests a field or area, while the 土 component represents the earth used to build the structure. Over time, it evolved to represent the concept of a base or fortified position.