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How to pronounce Lyapunov

person contested

lee ah puh nof /liˈɑːpʊnɒf/ mp3
or: lyah poo nof /ˌljɑːpʊˈnɔf/

Lyapunov is most commonly pronounced "lee ah puh nof" (/liˈɑːpʊnɒf/). This is one of several readings in active use; the developer community hasn't converged on a single answer.

Aleksandr Lyapunov (stability theory); Russian, genuinely split between penultimate 'lee-AH-puh-nof' and original final-stress 'lyah-poo-NOF'.

Alternate readings you might hear:

Source: Wikipedia

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 Lyapunov # primary × 3 + audible "or: …" for each alternate
$ say-it --alt Lyapunov # focus on the first alternate
$ say-it --all Lyapunov # primary AND every alternate, each repeated
$ say-it --solo Lyapunov # primary only, no "or: …" tail
$ say-it --why Lyapunov # 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 Lyapunov) 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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