different between pursing vs parsing

English

pursing

pursing (plural pursings)

An expression or motion that purses.
- 1973, Oliver Sacks, Awakenings
  The muscles about the mouth exhibited puckering movements and occasional pursings and poutings of the lips.

parsing (countable and uncountable, plural parsings)

(uncountable) The act or process in which an agent (person or computer) parses something (a text, a program).
Parsing can be difficult.
(countable) An instance of that act or process; a parse.
A parsing of a sentence about a horse can yield several possible results.
(countable) Any result of such an instance; a parse.
Upon review, for the word horse, the parsing "animal" was rejected in favor of the parsing "piece of gymnastic equipment".

parsing

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