Definitions

1. noun

a short message posted on the internet, especially one sent on Twitter.

“She posted a tweet about her new job.”

2. verb

to make a short, high-pitched sound, typically with the tongue against the roof of the mouth.

“The birds began to tweet in the morning.”

3. verb

to post a message on the internet, especially on Twitter.

“He tweeted about the news.”

4. verb

to utter a short, high-pitched cry, typically with the tongue against the roof of the mouth.

“The baby began to tweet with excitement.”