• 試験しけん — exam / test
• 試ためす — to try / to test
• 試合しあい — match / game
• 試こころみる — to attempt / to try
• 入試にゅうし — entrance exam
• 試作しさく — trial production / prototype
• 試運転しうんてん — test run
• 試着しちゃく — trying on clothes

With 言 (words) on the left and 式 (style/method) on the right, this kanji originally implied testing by speaking or acting in a particular manner. It’s now a versatile kanji for trying things, from school tests to life experiments.

日本語にほんごの試験しけんを受うけます。
I will take a Japanese language test.

この方法ほうほうを 試ためしてみましょう。
Let’s try this method.

新あたらしい技術ぎじゅつを 試こころみています。
They are experimenting with a new technology.