Up to
Up to adjective - Busy or occupied with.
When and up to are semantically related. in at the same time topic. In some cases you can use "When" instead an adverb phrase "Up to".
When
Cite this Source
When and Up to. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/up_to/when
Up to & When. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/up_to/when>.
When or Up to. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/up_to/when.
Google Ngram Viewer shows how "up to" and "when" have occurred on timeline