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How to pronounce ReLU

cs-term contested

RAY loo /ˈreɪ luː/ mp3
or: REH loo /ˈrɛ luː/

ReLU is most commonly pronounced "RAY loo" (/ˈreɪ luː/). This is one of several readings in active use; the developer community hasn't converged on a single answer.

"RAY-loo" common in US; "REH-loo" also heard. Rectified Linear Unit.

Alternate readings you might hear:

Pronouncing project and product names correctly avoids the small but persistent friction of being gently corrected during standups, conference Q&As, and team calls. Hearing the word a few times locks in the right reading better than reading IPA ever will. Pronounce is a community-maintained dictionary — every entry tagged with a confidence level and (where possible) a citable source.

Hear it from the command line

$ say-it ReLU # primary × 3 + audible "or: …" for each alternate
$ say-it --alt ReLU # focus on the first alternate
$ say-it --all ReLU # primary AND every alternate, each repeated
$ say-it --solo ReLU # primary only, no "or: …" tail
$ say-it --why ReLU # print the dict entry with source URL

Install the CLI: git clone https://github.com/anzy-renlab-ai/pronounce.git && cd pronounce && ./install.sh

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About this entry

Audio on this page is rendered by your browser's Web Speech API, whose voice varies by OS and browser. The CLI (say-it ReLU) uses macOS's built-in say with a tuned respelling for a consistent reading. Found an issue or want to add a reading? Contribute on GitHub.

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