Duration
Duration noun - Uninterrupted or lasting existence.
Usage example: scientists warning that the very duration of our civilization depends upon finding a solution to this major environmental problem
Extension and duration are semantically related in persistence topic. In some cases you can use "Extension" instead a noun "Duration".
Extension
Extension noun - The act of making longer.
Duration and extension are semantically related in persistence topic. Sometimes you can use "Duration" instead a noun "Extension".
Mutual synonyms
Related pairs
How words are described
Both words in one sentence
- It is generally agreed that the most recent extension of American copyright duration — the Sonny Bono Copyright Term Extension Act — was enacted at the behest of the Walt Disney Company solely to keep Mickey Mouse cartoons from entering the public domain.
Source: Public Domain Character -
Like the human version, it can also be extended beyond its default 10 second duration: the first extension is guaranteed, but anything past that is randomized and depends on whether you manage to trigger Cockpit Time.
Cite this Source
Extension and Duration. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/duration/extension
Duration & Extension. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/duration/extension>.
Extension or Duration. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/duration/extension.
Google Ngram Viewer shows how "duration" and "extension" have occurred on timeline