これまで

expression, noun which may take the genitive case particle 'no'

so far; up to now; until now

Refers to the period from the past up to the present moment. Often used as an adverbial phrase.

• これまでにない経けい験けんをした。

  I had an experience like never before.

• これまでのところ、問もん題だいは起おきていない。

  So far, no problems have occurred.

expression

that's enough (for today); it ends here

Used to declare that something is finished or sufficient, often in a conclusive or dismissive tone. Common in spoken Japanese.

• これまで！今日きょうの練れん習しゅうは終おわりです。

  That's it! Today's practice is over.

• もうこれまでだ。諦あきらめよう。

  This is the end. Let's give up.