Cluster and dissipate are opposites. Cluster is to gather into a tight, dense bunch, held by nearness. Dissipate is to scatter and gradually fade until nothing is left. Cluster draws things densely together; dissipate thins a thing out until it vanishes.
One packs things densely together; the other lets a thing thin away to nothing. Cluster gathers things into a tight bunch where each stays itself, held by nearness — grapes on a stem, cases in one district. Dissipate, from dis- 'apart' and supare 'to throw', thins something out until it is gone. Cases cluster densely in one place; a fog dissipates off the hills. One ends in a dense group; the other in nothing.
cluster
A cluster is a group of things packed closely together — a cluster of grapes, of stars, of houses — and to cluster is for them to gather into such a tight bunch. From the Old English clyster, an old word for a bunch or branch of things growing together, a bunch of grapes being the classic image. What defines a cluster is not a boundary but density: the members crowd near one another, closer than to anything outside. The word stretches from the spatial (stars cluster) to the temporal (a cluster of events) and the technical (a cluster of data points).
dissipate
To dissipate is to scatter and fade until nothing is left: fog dissipates as the sun climbs, tension dissipates after an argument, energy dissipates as heat. Unlike disperse, where a thing spreads out but still exists somewhere, what dissipates loses itself completely — it thins into the air and is gone. From the Latin dissipare, 'to scatter', it can also mean to squander: a fortune may dissipate as surely as mist. Either way, something concentrated ends as nothing.
| cluster | dissipate | |
|---|---|---|
| Meaning | gather into a tight, dense bunch | scatter and fade away to nothing |
| Ends with | a dense, packed group | nothing left |
| Density | dense, crowded close | thinning to nothing |
| Often with | grapes, stars, houses, cases | fog, heat, energy, tension |
| Noun | a cluster / clustering | dissipation |
| Example | The cases clustered. | The mist dissipated. |
Ask whether things pack densely together or fade to nothing. Cluster presses separate things into a dense bunch — grapes packed on a stem. Dissipate thins a thing out until nothing remains — a fog lifting off the hills. If things crowd close and dense, that is cluster; if a thing spreads out and fades to nothing, that is dissipate.
cluster
- iThe houses cluster along the sheltered side of the hill.
- iiCases clustered in one part of the city.
- iiiReporters clustered around the entrance.
dissipate
- iThe tension in the room dissipated once she laughed.
- iiBy noon the fog had completely dissipated.
- iiiHis early energy slowly dissipated over the evening.
Cluster draws things into a dense, close group; dissipate thins a thing out until it is gone. They oppose in density and outcome — a packed group versus nothing. Cluster is often of countable things (cases, stars); dissipate usually of formless things (fog, heat, mood).