British spelling of specializing; focusing on a particular area of activity, study, or expertise. Concentrating one's efforts on a specific field or skill.
From Latin 'specialis' meaning particular or individual, from 'species' meaning appearance or kind. The concept of professional specialization grew with industrialization in the 19th century, when complex societies required experts in narrow fields.
Adam Smith's famous pin factory example showed how specialization increases productivity—one person making whole pins produced few, but when ten people specialized in different steps, they produced thousands. This economic insight helped launch the Industrial Revolution and shaped modern professional life.
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