The core meaning of the kanji 載 is "to load," "to place on," or "to be published/carried." It implies the act of putting something on top of or within something else, whether physically or conceptually. It can also refer to the act of recording or including information.

・On-yomi (音読み): サイ ・Kun-yomi (訓読み): の（せる） (noseru) - to load, to place on; の（る） (noru) - to get on, to ride, to be published

⚫︎ 記事に掲載される Translation: To be published in an article. ⚫︎ 車に荷物を載せる Translation: To load luggage onto a car. ⚫︎ ウェブサイトに情報を掲載する Translation: To publish information on a website.

The kanji 載 is a phono-semantic compound (形声文字). The semantic component is 𠦬 (zai), which represents a cart or vehicle, and the phonetic component is 𨉧 (zai), which gives the sound. This combination suggests putting things into a cart, or loading something into a vehicle. Over time, the meaning broadened to include publishing and recording information.