Given the task definition and input, reply with output. In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Bulletproof glass ( ballistic glass , transparent armor , and bullet-resistant glass ) is a strong and optically transparent material that is particularly resistant to penetration by projectiles .

Bullet-proof glass , or bullet-resistant glass , is a type of strong , clear material that resists bullets .