A Word Per Day is a free Chrome add-on developed by sempervictoria that aims to help users expand their vocabulary. Each day, a different English word is chosen for you and displayed when you open your browser. The word is then kept throughout the day, unless you choose to pass it.

This add-on is a great way to learn new words and improve your language skills effortlessly. By being exposed to a new word every day, you can gradually expand your vocabulary and enhance your communication abilities. Additionally, if you wish to review the word at specific intervals, you can adjust the settings to receive reminders.

To pass on the word and move on to the next one, simply press the "p" key on your keyboard. A Word Per Day is a simple yet effective tool for anyone looking to enrich their language knowledge and make learning fun.