IPA: /ˈbɪtreɪt/
KK: /ˈbɪtˌreɪt/
The rate at which data is transmitted or processed, usually measured in bits per second.
The video quality improved significantly when I increased the bitrate.
Bitrate is formed from "bit" (a basic unit of information in computing, derived from binary digit) and "rate" (from Latin "ratio", meaning a measure or calculation). The term refers to the amount of data transmitted in a given amount of time, typically measured in bits per second.
Think of 'bit' as a small unit of data and 'rate' as a measure of speed — together, they describe how much data is transmitted over time.