What doen instant messenger mean?

Instant messenger refers to a type of software application that allows users to communicate in real-time through text messages, voice, or video calls over the internet. These platforms enable instant communication between users, often featuring additional functionalities like file sharing, emojis, and group chats. Popular examples include WhatsApp, Facebook Messenger, and Slack. Instant messaging has become a prevalent way for people to connect and collaborate, both socially and professionally.