Testing meaning : To challenge. To refine (gold, silver, etc.) in a test or cupel; to subject to cupellation. To put to the proof; to prove the truth, genuineness, or quality of by experiment, or by some principle or standard; to try. (academics) To administer or assign an examination, often given during the academic term, to (somebody). To place a product or piece of equipment under everyday and/or extreme conditions and examine it for its durability, etc. To be shown to be by test. To examine or try, as by the use of some reagent. To attest (a document) legally, and date it. To make a testament, or will. The act of conducting a test; trialing, proving. Difficult, tough