dissolve vs separate
Dissolve and separate both come apart, with a difference in how. Dissolve is for a solid to break down and lose its shape into a liquid, or for a body to be formally ended. Separate is to move or keep things apart, or to be distinct — the things remaining. Dissolve breaks a thing down until it is gone or spread through a liquid; separate parts things that remain.
Quick rule: break a solid down into liquid, or formally end a body → dissolve; move things apart, or keep them distinct, the parts remaining → separate.
A sugar cube settles at the bottom of a tall glass with clean square edges; then the edges give — grains lift off and spiral up, the cube softens and shrinks, and a pale sweetness clouds the water until only clear liquid stands where a solid thing had been.
/dɪˈzɑːlv//dɪˈzɒlv/·verbTwo magnets sit clamped together, the pull between their poles drawn as taut little arcs; something draws them apart — the arcs stretch, thin and snap, and the two slide off to their own sides with a clean gap opening between them, each its own distinct piece.
/ˈsepəreɪt//ˈsepəreɪt/·verb, adjectiveBoth involve coming apart, but dissolve breaks a thing down and separate parts things that remain. Dissolve, from dis- 'apart' and solvere 'to loosen', lets a solid lose its shape into a liquid, or ends a body. Separate, from Latin separare 'to part', moves things away from each other or keeps them distinct, all still there. A sugar cube dissolves and loses its shape; two magnets are separated and each remains whole. One loosens a thing apart into a liquid or an ending; the other parts distinct pieces.
What each means
dissolve
To dissolve is for a solid to break apart into a liquid until it disappears into it — sugar dissolves in water — or, by extension, for something to fade out or be formally ended (a marriage, a company, a parliament is dissolved). From the Latin dissolvere, 'to loosen apart', from solvere 'to loosen', the root of solve and solvent. A substance dissolves when its particles separate and spread evenly through the liquid — the reverse of what happens when droplets coalesce. Governments dissolve; tension dissolves; a crowd can dissolve into laughter.
separate
To separate is to move things apart or to keep them apart — you separate two fighters, separate the yolk from the white, separate a class into groups. From the Latin separare, 'to disjoin'. Where you divide a whole into parts, to separate more often pulls already-distinct things away from each other, or sorts a mixture. As an adjective — and pronounced differently — separate means distinct or unconnected: three separate rooms, a separate issue. It is the quiet opposite of join.
At a glance
| dissolve | separate | |
|---|---|---|
| Meaning | break down into liquid; formally end | move or keep apart; be distinct |
| What is left | a solution, or nothing standing | the things, apart but intact |
| Of what | solids, companies, parliaments | items, groups, the yolk, the sexes |
| Noun | dissolution | separation |
| Example | The sugar dissolved. | Separate the two piles. |
How to remember the difference
Ask whether a thing loses its shape or the parts stay whole. Dissolve loosens a solid apart into a liquid, or ends a body — a sugar cube clouding away. Separate parts things that each remain — two magnets drawn to their own sides. If a solid breaks down or a body is ended, that is dissolve; if things are parted but stay intact, they are separate.
Examples
dissolve
- Stir until the sugar dissolves completely.
- The partnership was dissolved after thirty years.
- The tablet dissolves in a glass of water.
separate
- Separate the ripe fruit from the unripe before packing.
- The referee stepped in to separate the two players.
- Separate the yolks from the whites.
Both involve things coming apart, but dissolve breaks a thing down — a solid losing its shape, or a body ended — while separate parts things that remain whole and distinct. You separate the yolks (both remain); the sugar dissolves (it loses its shape). Watch separate's spelling — an 'a' in the middle.
FAQ
- What is the difference between dissolve and separate?
- Dissolve is for a solid to break down and lose its shape into a liquid, or for a body to be formally ended, while separate is to move or keep things apart, or to be distinct, with the things remaining. Dissolve breaks a thing down; separate parts things that remain. In the scenes above, a sugar cube loses its shape into water, whereas two clamped magnets are drawn cleanly to their own sides and each remains whole.
- Are dissolve and separate the same?
- They overlap in things coming apart, but end differently. Dissolve breaks a thing down — a solid losing its shape into a liquid, or a body ended; separate parts things that remain whole and distinct. The sugar dissolves; the yolks are separated. The tell is what is left: a solution or nothing (dissolve) versus distinct pieces (separate).
- Is separate an adjective as well as a verb?
- Yes, and the two are pronounced differently. The verb 'to separate' ends in a full '-ate' (SEP-uh-rayt) and means to part things; the adjective 'separate' has a reduced ending (SEP-rit) and means distinct ('two separate piles'). Dissolve is only a verb, its noun being dissolution. So separate can name a state of distinctness, dissolve the breaking-down of a thing.
- How do you spell separate correctly?
- S-E-P-A-R-A-T-E — the tricky part is the middle 'a', not an 'e': think of 'a rat' hidden in sepARATe. It is one of the most misspelled words in English. Dissolve has its own trap — a double 's' from the prefix dis- joined to solve. Both reward a careful eye in exam writing.
- What are the noun forms of dissolve and separate?
- Dissolution and separation. 'The dissolution of the company' names a body being ended, and dissolution also names a solid breaking down in liquid; 'the separation of the yolks' or 'of powers' names a parting or keeping-apart. The nouns keep the outcome apart: a breaking-down versus distinct parts remaining.
- Which word fits parting the yolks from the whites?
- Separate. You separate the yolks from the whites — parting two things that each remain whole, as the magnets draw apart in the scene above. Dissolve would mean a solid breaking down into a liquid. The tell is what is left: separate leaves distinct parts, dissolve breaks a thing down.
- Which word fits sugar in water?
- Dissolve. Sugar dissolves in water — a solid losing its shape and spreading through a liquid, as in the scene above. Separate would mean parting things that remain whole. The tell is what happens to the solid: dissolve breaks it down into a solution, separate parts distinct pieces that stay intact.