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/dɪˈvɛləpmənt/ · de·vel·op·ment
noun
  1. The process of developing; growth, directed change. The development of the city’s public transit system took over a decade.
  2. The process by which a mature multicellular organism or part of an organism is produced by the addition of new cells. Embryologists study the development of the heart to understand congenital defects.
  3. Something that has developed; a newly occurring event or piece of information. The police announced a new development in the investigation.
  4. The planning and construction of new buildings or infrastructure, especially in real‑estate contexts. The waterfront development includes luxury apartments and a promenade.
Did you know? The phrase ‘software development’ was popularized in the 1950s as programmers began to view code creation as an iterative, evolving process rather than a single act.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 14, 2026