All 6 Uses

vary
in
The Tipping Point
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"We had the most varied set of slides we could imagine," said Palmer.†
Chpt 3 *

varied = differed; or changed
Instead of a varied, magazine formal, each episode follows a single story line — the exploits of an animated dog by the name of Blue.†
Chpt 3
Crime, on the other hand, isn't a single discrete tiling, but a word used to describe an almost impossibly varied and complicated set of behaviors.†
Chpt 4
Then they varied the subject of the theme the students were asked to talk about.†
Chpt 4
Finally, the instructions given by the experimenters to each student varied as well.†
Chpt 4
As Shiftman writes: Chippers' smoking varies considerably from day to day, and their smoking patterns often include days of complete abstinence.†
Chpt 7

varies = differs; or changes

Definitions:

(1) (vary)
to be different, or to change

Vary is often used to describe small differences or changes--especially about things of the same type. It would be more common to say "The weight of full-grown elephants varies depending upon diet and other factors," than to say "The weight of elephants varies from that of mice."
(2) (meaning too rare to warrant focus)