Dissipate and divide both undo a whole, but end very differently. Dissipate is to scatter and gradually fade until nothing is left. Divide is to split a whole into parts or shares, which remain. Dissipate ends in nothing; divide ends in measured parts.
Both break a whole up, but dissipate loses it and divide keeps it in parts. Dissipate, from dis- 'apart' and supare 'to throw', thins something out until it is gone. Divide, from Latin dividere 'to force apart', splits one whole into measured parts or shares, all still there. A fortune dissipates and is gone; an estate is divided among the heirs, who each hold a share. One fades to nothing; the other makes lasting portions.
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.
divide
To divide is to split a whole into parts — often equal ones, and often methodically: divide a cake into six, divide the class into groups, divide twelve by three. From the Latin dividere, 'to force apart'. It is the tidy, measured cousin of split. As a noun, a divide is a gap or rift between groups — the digital divide, a widening social divide. The word reaches into maths (dividend, divisor) and into the old strategy of divide and conquer.
| dissipate | divide | |
|---|---|---|
| Meaning | scatter and fade away to nothing | split a whole into parts or shares |
| Ends with | nothing left | measured parts that remain |
| Order | gradual thinning | measured, ordered parts |
| Often with | fog, heat, energy, a fortune | land, money, a class, opinion |
| Noun | dissipation | division |
| Example | The fortune dissipated. | They divided the estate. |
Ask whether the whole fades to nothing or is parcelled into lasting parts. Dissipate thins a thing out until nothing remains — a fog lifting off the hills. Divide cuts one whole into measured parts that ease apart and stay — a pie into even wedges. If it fades to nothing, that is dissipate; if it becomes lasting parts, that is divide.
dissipate
- iThe tension in the room dissipated once she laughed.
- iiBy noon the fog had completely dissipated.
- iiiHe dissipated the family fortune over twenty careless years.
divide
- iThey divided the land equally among the four children.
- iiThe teacher divided the class into six groups.
- iiiThe issue divided the party down the middle.
Both undo a whole, but dissipate fades it to nothing while divide makes lasting parts. Note the money sense: a fortune can dissipate (waste away to nothing) or be divided (shared out in parts that remain). The tell is the outcome — nothing left versus measured shares.