Pronunciation: [vˈe͡ɪpəɹɪŋ] (IPA) 
The correct spelling of the word "vapouring" in British English is with a "u" after "o". It is pronounced /ˈveɪpərɪŋ/ with stress on the first syllable. The IPA phonetic transcription shows the exact sounds and stress of the word. "Vapouring" means boastful or arrogant talk, usually without much basis. It is a word that is not commonly used nowadays, but can still be found in literature or older texts.
Vapouring, also spelled as "vaporings," is a noun form derived from the verb "vapour" or "vaporize." It refers to the act of emitting, producing, or releasing vapors or gases into the atmosphere. Vapouring typically involves the conversion of a liquid or solid substance into a vapor or gas state, often due to heating or evaporation. The term can be applied to various contexts, including scientific, industrial, and everyday life.
In scientific applications, vapouring might be used to describe the process by which a liquid changes to a gaseous state, such as the evaporation of water or the boiling of a substance. Industrial processes may involve the vapouring of chemical compounds or substances for various purposes, such as in the production of fuels, pharmaceuticals, or chemicals.
In a broader sense, vapouring can also be used to describe figurative or metaphorical situations where someone excessively boasts, brags, or exaggerates their accomplishments, abilities, or qualities. This usage stems from the idea that vapors or gases can be intangible and insubstantial, just like empty or exaggerated claims. In this context, vapouring often carries a negative connotation, indicating someone who engages in self-aggrandizement, often in an annoying or bothersome manner.
Overall, vapouring encompasses both physical and metaphorical aspects, depending on the context in which it is used.
Boasting ostentatiously.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "vapouring" is derived from the Middle English term "vapour", which originated from the Old French word "vapore". This Old French term, in turn, came from the Latin word "vapor", meaning "steam" or "vapor". The Latin word "vapor" referred to the act of evaporating or emitting steam or vapor. Over time, the word "vapor" evolved into "vapour" in Middle English, and the suffix "-ing" was added to create the noun form "vapouring". "Vapouring" refers to the act of emitting or producing vapor or steam, and it can also be used metaphorically to describe exaggerated or boastful speech.
