password
Definition:
A password is a secret phrase used in combination with a username to gain access into an account on a computer or website. It's good practice to make your passwords hard to guess but easy to remember.
Here's a word you may not know...
DVD
DVD stands for Digital Video Disc and is a popular medium for movies. Movies on a DVD are stored digitally. Playing a DVD requires a DVD player or other device, such as a computer, with a DVD drive. DVDs can hold 6-7 times the amount of information as their same-sized counterpart, the CD.
Certain types of writeable DVDs can be used by computers to store data.