Pattern wiki:
[he martial arts related meaning of Pattern see Tae Kwon Do and Kata (Karate).A pattern is a form, template, or model (or, more abstractly, a set of rules) which can be used to make or to generate things or parts of a thing, especially if the things that are generated have enough in common for the underlying pattern to be inferred or discerned, in which case the things are said to exhibit the pattern. Pattern matching is the act of checking for the presence of the constituents of a pattern. The detection of underlying patterns is called pattern recognition.
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Umbrella wiki:
brella is a device used for temporary shade or shelter from precipitation. They can be made by stretching a fabric or other material over a wire frame. Umbrellas carried by hand are now usually used as rain shields, although their first use was for shielding from the sun; however, as tans became more sociably acceptable, this usage declined.
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