Lengthen
Lengthen verb - To make longer.
Supplement and lengthen are semantically related. In some cases you can use "Supplement" instead a verb "Lengthen".
Supplement
Supplement verb - Add as a supplement to what seems insufficient.
Lengthen and supplement are semantically related. Sometimes you can use "Lengthen" instead a verb "Supplement".
Mutual synonyms
Related pairs
Cite this Source
Supplement and Lengthen. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/lengthen/supplement
Lengthen & Supplement. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/lengthen/supplement>.
Supplement or Lengthen. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/lengthen/supplement.
Google Ngram Viewer shows how "lengthen" and "supplement" have occurred on timeline