Browser (noun)

1. A software application used for accessing and viewing websites on the internet.
2. A computer program that allows a user to access and view websites on the internet.

Origin:

From browse + -er, first recorded in the early 20th century.

Examples:

1. He was using a browser to surf the internet.
2. She was using a browser to access her email.
3. The browser crashed while he was using it.
4. He downloaded a new browser.
5. She updated her browser for security reasons.