Connected to an object. Each language's documentation might use another expression persistently, but most real programmers use them interchangeably. (Nevertheless, this also usually means a lot of the phrases may be ambiguous, like "course variable" - which can be interpreted as "a variable of the instance of the offered course", https://maxestatessector36a.school.blog/2025/05/12/m3m-altitude-sector-65-gurgaon-live-the-extraordinary/