The List of Intangible Cultural Heritage in Need of Urgent Safeguarding (see criteria) is composed of intangible heritage elements that concerned communities and States Parties consider require urgent measures to keep them alive.

UNESCO: Culture Sector - Intangible Heritage - 2003 Convention

As the passage implies, even something as seemingly simple as an airplane flying in the sky is actually just one part of a large sociotechnical system composed of various human and machine elements, from the pilot and airplane to a series of airports, communication and navigation systems, bureaucracies, regulations, rules and norms of flight, and more.

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The Cloud is bigger than Big, but it is also amorphous and composed of millions of tiny, discrete elements.

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Autobiographical elements fill each of the vividly composed ballads.

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Plato believed that the first four corresponded to the elements of which the Greeks thought the material world was composed: fire, air, water and earth.

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Lignin is one of the structural elements in the walls of the cells of which wood is composed.

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