How does a name like 'Mount Everest' point to a specific mountain in the Himalayas? How does 'William Shakespeare' single out one particular English playwright? It seems simple, but philosophers and linguists have long puzzled over how names connect to the things they name.

One of the first major attempts to answer this is called the descriptivist theory of names. The core idea is that a name isn't just a label. Instead, it works like a shorthand for a set of descriptions. The meaning of a name is found in the specific details we associate with it.

In this view, when you use the name 'Aristotle', you're not just making a sound. You're actually referring to whatever person uniquely fits that description. The description is what anchors the name to the person in the real world. If someone else had been Plato's student and Alexander's teacher, then the name 'Aristotle' would, according to this theory, refer to them instead.

Two key figures shaped this way of thinking: Gottlob Frege and Bertrand Russell. They approached the problem from slightly different angles but arrived at similar conclusions.

Gottlob Frege, a German logician, made a crucial distinction between the sense of a name and its reference. The reference is the actual object the name points to. The sense is the way in which the name points to that object—the description or idea it conveys.

Frege used the example of 'the morning star' and 'the evening star'. These are two different descriptions (senses), but they both refer to the same object: the planet Venus. The sense is the description that helps you pick out the reference. For Frege, the meaning of a name is its sense.

Bertrand Russell, a British philosopher, took a more direct approach. He argued that ordinary proper names are really "disguised descriptions." When we say "Walter Scott is the author of Waverley," Russell believed the name 'Walter Scott' is just a placeholder for a description like 'the person who wrote Waverley'.

For Russell, a statement using a name is an assertion that one and only one thing in the world satisfies a particular description.

Ultimately, both Frege and Russell landed on the same fundamental principle: the meaning of a name is not the person or thing itself, but the descriptive information speakers associate with that name. This information acts as a set of instructions for identifying the name's bearer.

This theory provides a powerful way to think about how language connects to the world. It suggests that our knowledge and beliefs are baked into the very words we use. When we use a name, we are also making a claim about what the world is like.

The descriptivist theory was the dominant view for much of the 20th century and remains a foundational concept for understanding how we talk about the world.