TAKOBOTO

this, especially (emphasis),very
Welcome! Nice to see you!

しばらくやすみましたが、ことしこそはえいごりょくをさらにこうじょうさせましょう。

I've been off a while but _this_ year I'll see your English ability raised.

こんどこそやってやる。

I'm gonna do it this time or never.

これこそわれわれがさがしもとめていたものだ。

This is the very thing we have been seeking and looking for.

わたしこそおわびしなければなりません。

It is I, and not you, who must apologize.

とめるのをきかばこそあいつはとびだしていった。

Without giving the slightest attention to my plea to stop, he rushed out of the house.

ようこそおいでくださいました。

You are very much welcome.

のひかりそくどにかんするじっけんがあったからこそはとくしゅそうたいせいりろんをかくりつすることができた。

It was purely because of the Michelson-Morley experiment on the speed of light that made it possible for Einstein to establish his special theory of relativity.

これこそもとめていたものですよ。

That's just what I wanted.

あしたこそ、べんきょうするぞ！（

I will definitely study tomorrow！

まさかのときのともこそしんのとも。

A frien in need is a friend indeed.

きみじぶんのためをおもえばこそこういっているのです。

We`re only saying this for your own sake.

これこそいまわたしにひつようなほんです。

This is the very book I need now.

This grammar can only be used after a noun.

rubyhatchet

こそ is ubiquitous, but hard to translate.

bamboo4

I like to think that whatever is coming before こそ is being smacked on the head (To make a point).

LittleFish

I think [3106] should be moved to the [dakarakoso] entry.

srobertson

I think こちらこそ should be added as an example, or as a stock phrase that doesn't mean quite what a non-native might expect.

winterkoninkje

こそ　＝＝　this very

ex:今年こそーthis very year

tamilselvan_t