"Vacum" is a misspelling of "vacuum," which is most commonly used to mean either an appliance called a vacuum cleaner that cleans by suctioning up dust or a space that does not contain any matter, including air.
"Discluded" is an incorrect variant of the word "excluded," which is a verb that means to leave out or not include someone or something in a particular group, event, activity, or situation.
"Obselete" is a misspelling of "obsolete," which is an adjective that describes something that is no longer in use, outdated, or has become irrelevant.