The kanji 側側 primarily means "side," "flank," or "nearby." It refers to the lateral aspect of something, the position next to something, or a related location. It can also imply a person's perspective or viewpoint.

・On-yomi (音読み): ソク (soku) ・Kun-yomi (訓読み): そば (soba) - side, vicinity; がわ (gawa) - side

⚫︎右側 Translation: right side ⚫︎川の側 Translation: the side of the river ⚫︎彼の側側 Translation: his side (perspective)

The kanji 側側 is a phono-semantic compound (形声文字 - keisei moji). The radical is 亻 (ninben, meaning "person"). The phonetic component is 則 (soku), which originally meant "rule" or "standard," but here gives the sound. The combination suggests something being alongside a person or the side where a person would be located.