JMdict: 1007720

ちゃんと

1. [adv,vs] diligently; seriously; earnestly; reliably; steadily; legitimately
2. [adv,vs] perfectly; properly; exactly; orderly; punctually; regularly; safely; in good condition
3. [adv,vs] sufficiently; satisfactorily
4. [adv,vs] quickly

Words often seen with this one: (experimental feature)

こと (1141), 私 (827), いい (525), この (483), 子 (478), 俺 (355), いる (335), まで (333), 自分 (307), 人 (292), それ (285), もっと (280), 大丈夫 (270), その (268), 事 (261), 話 (260), そんな (257), 今 (255), あたし (233), 仕事 (230), オレ (230), 先生 (226), 一緒に (225), もう (215), お前 (212)