区く別べつをつける

expression, ichidan verb

distinguish between; tell the difference between

Used when making a clear distinction between two or more things, often in contexts where the difference is not obvious or needs to be pointed out.

• この二ふたつの色いろは似にているので、区く別べつをつけるのが難むずかしい。

  These two colors are so similar that it's hard to tell the difference between them.

• 彼かれは本ほん物ものと偽にせ物ものの区く別べつをつけることができる。

  He can distinguish between the real thing and a fake.