Abate and subside both describe the bad thing dying down, watched from different instruments. Abate reads the force meter: the storm's violence slackens, the wind loses conviction, anger cools. Subside reads the level gauge: floodwater sinks back down the steps, swelling goes down, noise settles toward quiet. A storm abates as its fury drains; the water it left subsides after. Same relief, two measurements.
Both verbs need something unwelcome at its peak, and both promise the peak is passing — which is why forecasts and news reports lean on the pair. Their Latin splits the instruments: abate descends from battere, 'to beat' — the beating lessens — while subside is sub- + sidere, 'to sit down', the same settling that gives sediment. So abate suits forces with intensity to lose (storms, winds, fury, an epidemic's spread), and subside suits quantities with a level to sink (water, swelling, applause, ground itself — engineers call sinking ground subsidence). They overlap wherever a force and a level travel together, which is most of the time.
abate
To abate is to die down — to become weaker, gentler, or less severe over time. Storms abate, pain abates, public anger abates. The word almost always describes the force of something unpleasant or overwhelming draining away rather than the thing disappearing all at once: it is still there, but its intensity is easing off. Unlike diminish, which tracks a shrinking in size or number, abate is about a violent or unwelcome thing losing its grip. It can also be used transitively — to reduce something deliberately, as in measures taken to abate noise pollution.
subside
To subside is to settle downward: sub- 'down' plus sidere 'to sit', the same root that gives sediment. Floodwater subsides as it drains and the level sinks; a storm, a fever or a wave of laughter subsides as its force sits back down toward calm. The word always measures against a peak — something rose, and is now returning to its resting level. Ground can subside too, sinking where mining or drought has emptied the space beneath it, which engineers call subsidence.
| abate | subside | |
|---|---|---|
| Watches | a force's intensity | a level's height |
| Classic subjects | storms, winds, anger, an outbreak | floodwater, swelling, noise, ground |
| Latin picture | the beating lessens | sits back down (kin to sediment) |
| Special use | transitive: measures to abate noise | subsidence: ground sinking |
| Set phrases | show no sign of abating | the pain / floodwaters subsided |
| Nouns | abatement (noise abatement) | subsidence |
The last drop and the returned steps. The downpour abates: nobody switches it off — its force tires, streaks straightening, thinning, until one final tap lands in an outstretched palm. The flood subsides: the level sits back down stair by stair, each returned step keeping its tide-line. Ask which instrument your sentence is reading. Fury, wind, intensity: abate. Height, depth, amount above normal: subside. The storm abates overhead while its water subsides below.
abate
- iThe gale abated overnight, leaving a coastline of small repairs.
- iiPublic fury refused to abate even after the resignation.
- iiiNew filters were installed to abate the plant's emissions.
subside
- iThe swelling subsided within a day of the sting.
- iiLaughter subsided into the occasional stray giggle.
- iiiParts of the old town are subsiding into the drained marsh beneath.
Abate alone goes transitive — you can abate a nuisance deliberately (noise abatement, emission abatement is legal-technical English), while nothing 'subsides' anything. Subside alone owns the ground: subsidence is the engineer's word for earth sinking over mines and dried clay, an IELTS reading staple. Abate's finer contrasts — with diminish, and with alleviate — have their own pages on this site. And guard subside's spelling neighbours: subsidy and subsidise are money words — the same sitting-down root (subsidium, troops held in reserve), but meanings that parted from settling long ago.
Trend and process writing is the shared home: 'flooding subsided within days' and 'demand shows no sign of abating' both replace a flat 'decreased' with precision. Two exam-adjacent specialisms are worth owning — noise/emission abatement in environmental passages, and ground subsidence in engineering ones. Keep 'show no sign of abating' intact as a chunk: it is the pair's most quotable phrase and slots into almost any stubborn-trend sentence.