The following is a glossary of philosophical terms and topics discussed here on Philosophy Index. Most of these are also linked in context, but this list is provided to keep track of them all, and provide a reference.
Since history has seen a wide range of philosophers with a wide range of backgrounds, terminology used in philosophical works is seldom consistent. This site tries to maintain consistency when using its terminology, but alternate definitions and variations in terms are provided where possible.
This list is by no means complete, and is being expanded as the rest of the site grows.