What term refers to “attainment or progression of a skill or capacity to function” such as the ability to walk during late infancy?

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Development refers to the attainment of skills, abilities, and capacities to function at various stages of life, such as the ability to walk during late infancy. Growth refers to physical changes such as weight and height gain. Maturation refers to biological changes that enable an individual to reach reproductive maturity. Senescence refers to the decline in physical and cognitive function that occurs in old age.

What Term Refers to “Attainment or Progression of a Skill