The kanji 了了 primarily conveys the meaning of "completion," "finished," "to end," or "to realize/understand." It signifies that an action or process is done, completed, or brought to a conclusion. It can also imply understanding or comprehension.

・On-yomi (音読み): ・リョウ (ryō) ・Kun-yomi (訓読み): ・None commonly used as a stand-alone reading.

⚫︎ 終了了 (しゅうりょう) Translation: Completion; end; finish ⚫︎ 完了了 (かんりょう) Translation: Completion; conclusion ⚫︎ 了解了 (りょうかい) Translation: Understanding; comprehension; acknowledgment

The kanji 了了 is an ideogram. Its original form represented a child's head or a completed situation. The upper part of the character is thought to resemble a child's head, and the lower part may indicate the completion of something, signifying "the end" or "finished." Over time, the character evolved to its current form, retaining its fundamental meaning of completion.