1. Telegram (the messaging app):
- Definition: A cloud-based instant messaging and voice over IP service that allows users to send text messages, voice notes, photos, videos, and files to each other, both individually and in groups. It is known for its strong focus on privacy and security.
2. Telegram (the historical communication system):
- Definition: A system of transmitting messages over long distances using a network of telegraph stations connected by wires. This method was widely used in the 19th and early 20th centuries for communication between governments, businesses, and individuals.
In modern usage, "Telegram" typically refers to the messaging app.
To avoid confusion, it's helpful to use the full phrase "Telegram messaging app" when referring to the app, and "telegraph" or "telegrams" when referring to the historical communication system.