The longest non-contrived place name in the United Kingdom which is a single non-hyphenated word is Cottonshopeburnfoot (19 letters) and the longest which is hyphenated is Sutton-under-Whitestonecliffe (29 characters).
Define longest. longest synonyms, longest pronunciation, longest translation, English dictionary definition of longest. adj. long er , long est 1. a. Extending or traveling a relatively great distance. b. Having relatively great height; tall. c. Having the greater length of...
At over 180,000 letters long, the chemical name of the protein titin is often said to technically be the longest English word. If spoken out loud, this word takes over three hours to say!
What Is the Longest Word In English? Here’s a List of 15 Lengthy Words
"Longest." Vocabulary.com Dictionary, Vocabulary.com, https://www.vocabulary.com/dictionary/longest. Accessed 16 Apr. 2026. Copy citation Examples from books and articles
In this article, we will explore the 12 longest words in the world, from different languages and cultures, discovering the beauty and complexity that can exist in a single word.
Many of the longest words in the dictionary refer to medicine or chemistry. The nature of their work, or science in general, calls for it as it deals with very specific things.
Find 73 different ways to say LONGEST, along with antonyms, related words, and example sentences at Thesaurus.com.
'longest' also found in these entries (note: many are not synonyms or translations):
Uncover the truth behind the longest word in the English language, a massive 189,819-letter chemical name. Learn what it means, why it's so long, and whether it's truly considered a 'real' word.