What does broadening mean?
Broadening is the process by which something becomes wider, more extensive, or more inclusive — whether physically, as when a river widens toward its mouth, or figuratively, as when a person's outlook expands through new experiences. The word carries a strongly positive connotation in everyday use: to speak of 'the broadening of one's horizons' or 'a broadening of the mind' is to describe growth, openness, and enrichment. In formal contexts it appears often in education and public policy, where phrases like 'broadening participation' signal efforts to include more people. Science uses the term precisely too: spectroscopists speak of 'line broadening' when a spectral signal spreads across wavelengths. As a noun derived from the verb broaden, broadening emphasises change over time rather than a fixed state, distinguishing it from simple adjectives of width. It is an elegant, versatile word for describing expansion in almost any dimension — spatial, intellectual, or social.
nounThe action or process of becoming wider, larger in scope, or more inclusive; the act of making something wider or more extensive.
- The process of making or becoming wider or more extensive.
- An increase in scope, range, or inclusiveness (e.g. of ideas, opportunities, or participation).
"The broadening of her horizons began the day she left her small town for university."
"The broadening of the river made it impossible to cross on foot."
"Universities have welcomed the broadening of access to higher education."
Rare; the plural appears mainly in technical writing, e.g. referring to multiple instances of spectral line broadening.
"Different mechanisms produce distinct broadenings in the observed spectrum."
In linguistics and physics alike, 'broadening' names a universal truth: things spread — from spectral lines in stars to minds on their first trip abroad.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of broadening
Broadening derives from the adjective broad, which comes from Old English brād, meaning wide or extended, a word of Germanic origin found across related languages. The verb broaden was formed in English by adding the productive suffix -en, which converts adjectives into verbs denoting a change of state (compare widen, deepen, lengthen). The noun broadening then arose through regular nominalisation with -ing. Its closest relatives are therefore native Germanic formations such as breadth and broadly, rather than borrowings from Latin or French.
Related word forms
How broadening is actually used
Broadening is most often used as an uncountable noun referring to a gradual process rather than a single event. It frequently appears in formal or academic writing, especially in discussions of education, policy ('broadening participation'), and science (e.g. 'line broadening' in spectroscopy).
Easily confused with broadening
Broadness refers to the state or quality of being broad (a static property), while broadening refers to the process or act of making something broader.