reserve capacity: meaning, definition, pronunciation and examples

They are very close synonyms. 'Reserve capacity' often implies a more formal, planned, or strategic holding back of resources for a specific contingency, while 'spare capacity' can be more general, indicating unused or available resources.

Yes, but typically in technical or metaphorical extensions from systems theory. In psychology, 'cognitive reserve' is a related, more standard term. Using 'reserve capacity' for everyday mental energy is non-standard.

Primarily uncountable (e.g., 'We need more reserve capacity'). It can be countable when referring to specific types or instances (e.g., 'The two reserve capacities are managed separately').

'Capacity' is the total maximum amount a system can handle or produce. 'Reserve capacity' is specifically the portion of that total capacity that is not used under normal operations and is kept available for unexpected demands or emergencies.

The maximum additional amount of production or supply that a system, person, or machine is capable of delivering beyond its normal operating level.

Reserve capacity is usually technical/formal in register.

Reserve capacity: in British English it is pronounced /rɪˈzɜːv kəˈpæsɪti/, and in American English it is pronounced /rɪˈzɝːv kəˈpæsəti/. Tap the audio buttons above to hear it.