A word; reason; speech.
- In Presocratic philosophy, the principle governing the cosmos. In Stoicism, the active, material, rational principle of the cosmos
- Among the Sophists, the topics of rational argument.
- In Aristotelian philosophy, the appeal to reason.
- A form of rhetoric in which the writer or speaker uses logic as the main argument
- The word of God, which itself has creative power; a hypostasis associated with divine wisdom
- The creative Second Person of the Trinity, which simultaneously is Himself God and also with God the Father.
- Graphic representations of an aligned set of sequences, such as DNA binding sites or protein sequences. Called logos because a given graphical representation aggregates disparate elements, much as does an artistic corporate logo.
- Plural form of logo.