了了

to realize clearly / to settle a matter / to get it over with

(completed action marker) / (modal particle indicating change of state, situation now) / (modal particle intensifying preceding clause)

to finish / to achieve / variant of 瞭|了[liao3] / to understand clearly

(of eyes) bright / clear-sighted / to understand clearly

unofficial variant of 瞭[liao4]

to settle a matter by leaving it unsettled / to end up with nothing definite

being bright at an early age does not necessarily bring success upon growing up (proverb)