discern (someone or something) from (someone or something)
1. To recognize the differences between people or things. I have a hard time discerning Jim from Greg, but they are identical twins after all. You can discern hydrangea from phlox by looking at their leaves.
2. To gain information from someone or something. Her message was so cryptic that I couldn't discern anything from it—do you know what's going on?
discern someone or something from something (else)
to detect the difference between someone or something and something else. I can hardly discern Tom from the busy background in this picture. I can't discern anything from that cluttered scene.
discern something from someone or something
to learn or determine something from someone or something. We discerned a lot from the eyewitnesses. We discerned a lot from our discussions with the past president.