What does disperse mean?
To disperse is to scatter or spread out in many different directions, whether of one's own accord or as the result of some force acting on a group or substance. The word applies most often to collections of people — police disperse crowds, fog disperses at sunrise — but it extends naturally to physical phenomena: gases disperse through the air, seeds are dispersed by wind and animals, and white light disperses into a spectrum when it passes through a prism. Because it can be used both transitively ("they dispersed the gathering") and intransitively ("the gathering dispersed"), it lends itself to flexible, precise prose. The tone is largely neutral-to-formal, making it a staple of journalism, science, and official language. Derived forms include the nouns "dispersal" and "dispersion" and the adjective "dispersed." Its Latin root, spargere (to sprinkle), connects it etymologically to "sparse," giving the word a quiet elegance that rewards writers seeking variety beyond "scatter."
To go or move in different directions; to scatter; to cause to scatter or spread widely.
"After the concert ended, thousands of fans began to disperse across the city."
Both transitive and intransitive uses are standard and equally common.
Rarely used as a noun; the noun forms are 'dispersal' and 'dispersion'.
Avoid using 'disperse' as a noun; prefer 'dispersal' or 'dispersion' instead.
The same Latin root that gives us "disperse" also gives us "sparse" — so a sparsely populated area is literally one whose people have been scattered.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of disperse
Disperse derives from the Latin verb dispergere, formed from dis- (apart, in different directions) plus spargere (to scatter, sprinkle). The word entered English via Old French disperser in the late Middle Ages, with recorded use from around the 15th century. It shares its root with "sparse," which entered English directly from Latin sparsus, the past participle of spargere. Cognates and relatives include "aspersion," "interspersed," and "excrement" (from ex- + cernere/spargere-related roots), all carrying the core idea of scattering or sprinkling.
Related word forms
How disperse is actually used
Primarily formal to neutral in register. Common in news reporting (crowds, protests), scientific writing (light, particles, gases), and ecology (seed dispersal). The verb works both transitively ("police dispersed the crowd") and intransitively ("the crowd dispersed").
Easily confused with disperse
"Disperse" means to scatter or spread out, while "disburse" means to pay out or distribute money from a fund.