1. Large-scale, complex construction or infrastructure undertakings that require substantial investment, long planning periods, and coordination of multiple stakeholders.
Usage: Plural form; typically used in business, urban planning, and engineering contexts.; Often refers to projects costing billions of dollars.

Examples

• The city approved several megaprojects, including a new subway system and airport expansion.
• Megaprojects like the Channel Tunnel and the Three Gorges Dam took decades to complete.
• Government funding for megaprojects often faces public scrutiny and budget overruns.
• Many megaprojects in developing nations aim to improve transportation and energy infrastructure.
• The Olympic Games frequently involve megaprojects such as stadiums and transportation networks.
• Megaprojects require careful environmental impact assessments before construction begins.