Second
Second noun - A very small space of time.
Sub
Sub noun - A person or thing that takes the place of another.
Usage example: we had a sub in English today, so we didn't get our test results back
Show all Definitions
Synonyms for Sub
Second and sub are semantically related in substitute topic. Sometimes you can use "Second" instead a noun "Sub".
Mutual synonyms
Cite this Source
Sub and Second. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/second/sub
Second & Sub. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/second/sub>.
Sub or Second. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/second/sub.
Google Ngram Viewer shows how "second" and "sub" have occurred on timeline