  When a singular term refers to object \(o\) with respect to context \(c\) and the world of c, we can simply say that it refers to \(o\) in \(c\), without separately mentioning a world. So, ‘I’ refers to Mary in context \(c_1\) above. But once again, the notion of referring with respect to (or in) \(c\) is the less fundamental notion, and is defined in terms of the more fundamental relation of referring with respect to a context \(c\) and a world \(w\).