How to pronounce Weibull

Weibull is most commonly pronounced "WHY bull" (/ˈwaɪbʊl/). This is one of several readings in active use; the developer community hasn't converged on a single answer.

The Weibull distribution (reliability engineering, survival analysis, hazard/lifetime modeling, ML) is named after Swedish engineer Waloddi Weibull (1887–1979). General American speakers overwhelmingly say WHY-bull (/ˈwaɪbʊl/) with a true 'w' — this is the headword pronunciation in English Wikipedia, stress on the first syllable. But because Swedish 'W' is sounded as a 'V', the namesake-correct form is VY-bull (/ˈveɪbʊl/), which purists and many reliability engineers prefer; both are commonly heard in stats/ML talks. Either way the '-bull' is a reduced 'buul' (/-bʊl/), not 'bool'.

Alternate readings you might hear:

• "VY bull" /ˈveɪbʊl/

Source: Wikipedia § Weibull distribution (headword IPA /ˈwaɪbʊl/)

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.