attrition

IPA: ʌtrˈɪʃʌn

Grinding down or wearing away by friction.
The gradual reduction in a tangible or intangible resource due to causes that are passive and do not involve productive use of the resource.
(human resources) A gradual, natural reduction in membership or personnel, as through injury, incapacitation, retirement, resignation, or death.
(sciences) The loss of participants during an experiment.
(theology) Imperfect contrition or remorse.
(dentistry) The wearing of teeth due to their grinding.
(linguistics) The loss of a first or second language or a portion of that language.

(transitive) To grind or wear down through friction.
(transitive) To reduce the number of (jobs or workers) by not hiring new employees to fill positions that become vacant (often with out).
(intransitive) To undergo a reduction in number.

Examples of "attrition" in Sentences

The company experienced high attrition rates among its employees due to a lack of career advancement opportunities
The constant layoffs and restructuring efforts in the organization led to a rise in attrition
The manager implemented new retention strategies to combat attrition within the team
The attrition of customers was a concerning trend for the struggling business
The university sought to address attrition by providing more support services for students