Hours
Hours noun - An indefinite period of time.
Life spans and hours are semantically related. In some cases you can use "Life spans" instead a noun "Hours".
Life spans
Hours and life spans are semantically related. Sometimes you can use "Hours" instead a noun phrase "Life spans".
Mutual synonyms
Cite this Source
Life spans and Hours. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/hours/life_spans
Hours & Life spans. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/hours/life_spans>.
Life spans or Hours. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/hours/life_spans.
Google Ngram Viewer shows how "hours" and "life spans" have occurred on timeline