plural of Doctor of Philosophy

(uncountable) Philosophy, especially traditional metaphysical philosophy, which makes claims that cannot be verified by everyday experience of the physical world or by a scientific method.

(philosophy) Any of various philosophical traditions strongly influenced by certain 19th and 20th century philosophers from mainland Europe, such as Hegel.

(historical) The objective study of nature in the widest sense; science; (later especially) physics.

Synonym of philosophia perennis

(philosophy, uncountable) The area of philosophy which studies the nature and functions of the mind, thought, and consciousness, with attention to such topics as perception, reasoning, belief, memory, will, and identity.

The philosophical system introduced by Herbert Spencer, conceived as a fusion of the different sciences into a whole.

A Kantian approach to philosophy, in which the primary purpose is not to establish and demonstrate theories about reality, but rather to subject all theories to critical review.

A sentimental belief system, ignoring harsh realities.

(computing) An approach to software development based on the experience of developing the Unix operating system, emphasizing the creation of minimalist, modular, extensible code that can be easily maintained and repurposed.