Explain the difference between analytic and ontological reduction

The difference concerns what is being reduced. Analytic reduction concerns concepts and language whereas ontological reduction concerns the nature of beings/ existence. Analytic reduction involves showing that the language of one term can be reduced or broken down into the language of another term without loss of meaning. For example, the term “bachelors” can be reduced to “unmarried men” without loss of meaning making the terms analytically reducible to each other. It is not possible to negate that they are the same in meaning without logical contradiction. Ontological reduction involves showing that beings or entities of one kind are in reality, the same as entities in another kind. Thus they are numerically identical and share the same spatial and time qualities. For example, although the morning star and evening star refer to two different concepts, they are the same entity – the same star.