All 8 Uses

tautology
in
The Absolutely True Diary of a Part-Time Indian
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Are you going to bore me with your tautologies all day or are you going to actually say something?†
Chpt 12
Tautologies?†
Chpt 12
What the heck were tautologies?†
Chpt 12
You don't know what a tautology is, do you?" he asked.†
Chpt 12
What is a tautology?†
Chpt 12
"A tautology is a repetition of the same sense in different words," he said.†
Chpt 12
Oh, so if I said something like, 'Gordy is a dick without ears and an ear without a dick,' then that would be a tautology.†
Chpt 12
That's not exactly a tautology, but it is funny.†
Chpt 12 *

Definitions:

(1) (tautology as with: a linguistic tautology)
useless repetition in different words (such as "unmarried bachelor")
(2) (tautology as with: a logical tautology)
a statement that is necessarily true (such as "She will win the election or she won't.")
(3) (meaning too rare to warrant focus)