Attached to an object. Each language's documentation could use a special phrase consistently, but most precise programmers utilize them interchangeably. (Nonetheless, this also usually means some of the phrases is often ambiguous, like "class variable" - that may be interpreted as "a variable of an occasion of the presented class", https://whitelandurbanresort.video.blog/2025/05/12/m3m-altitude-prime-connectivity-and-unrivaled-luxury/