後

noun

(spatially) the back, the rear, behind / (temporally) later, afterwards, some time after the present / the rest

彼は家の後で犬と遊んでいました。

He was playing with the dog at the back of the house.

意味（1）

(spatially) the back, the rear, behind

意味（2）

(temporally) later, afterwards, some time after the present

後(あと)で連絡(れんらく)します。

Ato de renraku shimasu.I'll contact you later.

意味（3）

the rest

あとは頼(たの)んだぞ。

Ato wa tanonda zo.I leave the rest to you.