Definitions

1. noun

A substance, especially a paint or varnish, applied to a surface to prepare it for painting or coating.

“She applied a primer to the wall before painting it.”

2. noun

A short textbook or introduction to a subject, especially one that is used as a starting point for further study.

“The primer on quantum physics helped me understand the basics.”

3. noun

A device that initiates the firing of a gun or other explosive device.

“The primer in the rifle was faulty and needed to be replaced.”

4. verb

To apply a primer to a surface.

“The painter primed the wall before starting to paint.”

5. verb

To introduce someone to a subject or activity.

“The teacher primed the students for the new project.”