What does "newsletter" mean?

A periodically sent publication containing current events or the like, generally on a particular topic or geared toward a limited audience.

What is a synonym for "newsletter"?

Common synonyms include: advice, aerogram, air letter, airgraph, billet doux, billet-doux.

Pronounced //ˈn(j)uzˌlɛtɚ//.

/ˈn(j)uzˌlɛtɚ/ noun

noun ·Moderate ·College level

Noun

1
A periodically sent publication containing current events or the like, generally on a particular topic or geared toward a limited audience.
2
report or open letter giving informal or confidential news of interest to a special group wordnet

"You want more information about our activities? Subscribe to our newsletter."

From news + letter.