Senses
了/ 瞭 variants: 了, 瞭 to understand
(bound form) to understand or know clearly; to be bright or clear-sighted; to comprehend
了/ 瞭 variants: 了 to watch
(bound form) to watch from a high place or from a distance
瞭 to look out
(bound form) to watch from a height or to look into the distance; to observe
瞭 clear-sighted
(literary) of eyes, bright and clear; having good eyesight