Know
Know verb - To have a practical understanding of.
Worry
Worry verb - To experience concern or anxiety.
Common collocations
Both words in one sentence
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If you don't know who is that man, don't worry, the Kingpin explains all you need to know to understand the plot.
Source: Comicbook / Civil War - Don't worry, no need for you to hoist him over your shoulder and haul him all the way back to California, like I know you would if you had to.
Source: I Gave My Word - So much so that fans of Game of Thrones don't need to worry if the books never get finished, because the HBO writers know all of the important plot points from here on out.
Source: Spoil At Your Own Risk
Cite this Source
Worry and Know. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/know/worry
Know & Worry. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/know/worry>.
Worry or Know. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/know/worry.
Google Ngram Viewer shows how "know" and "worry" have occurred on timeline