RSI
noun
RSI is a noun meaning “Initialism of repetitive strain injury” (English Wiktionary, September 2026). It is spelled R-S-I, and it appears about once in every 2 million words in written English (wordfreq, 2021 data). The plural of RSI is RSIs.
What does RSI mean?
noun
- 1
Initialism of repetitive strain injury.
- 2
Initialism of recursive self-improvement.
- 3
Initialism of relative strength index.
- 4
Initialism of rapid sequence induction.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of RSI
- RSIs plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is RSI?
RSI appears about once in every 2 million words in written English, the 39,832nd most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).