You searched for: “tautology
tautology, tautologies
1. The needless repetition of an idea; especially, in words other than those of the immediate context, without imparting additional force or clearness, as in “widow woman”.
2. The redundant repetition of a meaning in a sentence, using different words.
3. In rhetoric, a tautology is the use of redundant language in speech or writing, or, put simply, "saying the same thing twice".
4. In logic: a compound propositional form all of whose instances are true, as “A or not A”; a proposition or statement that, in itself, is logically true; as, "Today, that competing swimmer will win or will not win."
This entry is located in the following units: -ology, -logy, -ologist, -logist (page 73) tauto-, taut- + (page 2)