retention - definition and synonyms

noun [uncountable] 

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  1. 1
    formal the ability to keep workers or customers from leaving a company, or students from leaving a school

    There is a recruitment and retention crisis in the teaching profession.

  2. 2
    formal the act of keeping or storing something
    retention of:

    This facility will be used for the retention of hazardous waste.

  3. 3
    medical a situation in which harmful substances stay in the body instead of passing out of it

    She still has serious fluid retention in the limbs and lungs.

  4. 4
    the ability to remember ideas or facts
    retention of:

    The patient showed good retention of facts and figures.