The quality or state of being central; the fact of being most important or occupying a central position.
From central + -ity (noun-forming suffix indicating quality or state). Dates to the 15th century in English from Medieval Latin centralitas.
In social psychology, 'centrality' determines how much someone's self-esteem depends on a particular identity—so being a doctor has high centrality for someone whose whole identity revolves around medicine.
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