noun
plural -tions
a formal and usually written request for something (such as a job, admission to a school, a loan, etc.) [count]
[count] :a document that is used to make a formal request for something
the act of applying something: such as
the act of putting something on a surface, a part of the body, etc. [noncount]
the use of an idea, method, law, etc., in a particular situation or for a particular purpose [noncount]
[noncount] :the use of a word, name, etc., to describe someone or something
the ability to be used for practical purposes [noncount]
[count] computers :a computer program that performs a particular task (such as word processing)
[noncount] formal :effort made to work hard in order to complete something successfully