Repeater/rɪˈpiːtər/ Definition 1 of 4Pro Tip 1/3Signal Boost Repeaters boost weak signals in areas with poor reception. In the basement, the Wi-Fi repeater strengthens the internet connection. Pro Tip 2/3Tech Context Used mainly in technical discussions about extending communication range. A repeater is essential for clear radio communication at sea. Pro Tip 3/3Physical Object It refers to an actual device, not a person or abstract concept. Our office installed a new repeater on the third floor.