1. A statement that is always true by a virtue of its components. 2. The repetition of an idea with different names. To repeat the same ideas by using different words is referred as tautology.

TAUTOLOGY: "An example of tautology is using necessary and essential in the same sentence."
Cite this page: N., Pam M.S., "TAUTOLOGY," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/tautology/ (accessed July 10, 2020).