試ためし

noun

trial; test; attempt

Refers to trying something out, often as an experiment or a first attempt. Commonly used in phrases like 試しに (as a trial) or 試しがない (there's no precedent/it's unheard of).

• 試ためしにこの新あたらしいソフトを使つかってみた。

  I tried using this new software as a test.

• そんなことは