Duration
Duration noun - The period during which something exists, lasts, or is in progress.
Functioning period and duration are semantically related. In some cases you can use "Functioning period" instead a noun "Duration".
Functioning period
Duration and functioning period are semantically related. You can use "Duration" instead a noun phrase "Functioning period".
Cite this Source
Functioning period and Duration. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/duration/functioning_period
Duration & Functioning period. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/duration/functioning_period>.
Functioning period or Duration. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/duration/functioning_period.
Google Ngram Viewer shows how "duration" and "functioning period" have occurred on timeline