Ah, that's a good idea.

A is the first letter of the Latin alphabet.

The core part of this machine requires very complex engineering.

His taste in music is really hardcore.

He handled the assault rifle carefully.

Our company's core competence is the development of innovative technology.

He likes to play hardcore games.

The Demon Core is a very dangerous substance.

A new PA system was introduced in our school.

Vitamin A is important for maintaining vision.