How to use こっち、そっち、あっち and どっち


Could you tell me when to use:

> こっち、そっち、あっち、どっち?

I don't understand when to use them.




First of all, those are the colloquial forms of こちら、そちら、あちら and どちら,
respectively.

Formal or informal, each pair has exactly the same range of meanings.

こっち = this one, this side, this way, over here, **_I, me_** , etc.

そっち = that one, that side, that way, over there, **_you, y'all_** , etc.

あっち = that one, that side, that way, over there, **_he, him, she, her, they,
them_** , etc.

どっち = which one (out of the two), which side, which way, **_which person (out
of the two)_** , etc.

**_IMPORTANT_** : The difference between そっち and あっち is NOT as simple as many
J-learners appear to believe, which goes like "そっち is middle-far and あっち is
quite far." For instance, suppose you are in New York and I am in Tokyo and we
are talking on the phone.

Me: 「こっちは今日すんげえ寒いんだけど、 **そっち** はどう？」"It's freakin' cold here today. How 'bout
over there?"

You: 「こっちもめっちゃ寒いよ。」"Over here as well."

New York is extremely far from Tokyo (Agreed?), but the Tokyo resident would
only use 「そっち」, not 「あっち」, to refer to New York when he is directly speaking
to the New Yorker. (I have seen multiple J-learners who have lived in Japan
for over a decade make this particular mistake.)

After the phone call, however, the Tokyoite will say to his wife "(I just
talked to Bob the New Yorker.) **あっち** も寒いらしいよ。" This is because he is talking
to someone who is right near him on **_his_** side of the world.

Common phrases using the words in question:

「こっち（に）[来]{き}て！」 = "Come over here!"

「どっちがほしい？」 = "Which one (of the two) do you want?" You use 「どれ」 instead when
there are three choices or more.

「そっちの言いたいことはそれだけ？」 = "Is that all you've got to say?"

「それはこっちでやるから、だいじょうぶだよ。」 = "I'll take care of it myself; Don't you worry!"

「どっちもどっちだよ/だな。」 = "The two are equally good/bad/yummy/right/wrong, etc."

「どっちかにしてよ。[両方]{りょうほう}は[買]{か}えない。」 = "Pick one (out of the two). I can't buy
you both."

