Evolution is gradual development over time, and in biology the change of species across generations. Evaluation is an assessment — a judgement of quality, value or performance. The evolution of the car; a performance evaluation. The words look alike and mean nothing alike.
The core difference
- evolution — gradual change and development; the biological process by which species change over generations. The evolution of language, Darwin's theory of evolution.
- evaluation — a formal assessment of worth, quality or performance. A risk evaluation, staff evaluations, evaluation of the evidence.
The tell
Inside evaluation is value — an evaluation puts a value on something. Inside evolution is evolve — a slow unrolling. One is something that happens over time; the other is something someone does, usually with a form. The verbs behind them never cross: evaluate, evolve.
In use
- evolution — The evolution of the bicycle took a century. Whales are a textbook case of evolution.
- evaluation — Each project gets an independent evaluation. Her evaluation was due in June.
Common slips
- a staff evolution → a staff evaluation
- the evaluation of the species → the evolution of the species
Value sits inside evaluation; evolve sits inside evolution.
Where the words come from
Evolution is from Latin evolvere, "to unroll" — it first meant the unrolling of a scroll, then any gradual unfolding, and Darwin's sense settled in the nineteenth century. Evaluation is from French évaluer, "to find the value of", and entered English in the eighteenth century as a term of accounting before spreading to any assessment.
Frequently asked questions
Is evolution only a biology word?
No. It means any gradual development — the evolution of a design, a city, a style. Biology is its best-known use.
What is the verb of evaluation?
Evaluate — to assess. The verb behind evolution is evolve.
Can you say "the evolution of the project" meaning its review?
No — that would be its evaluation. Its evolution is how it developed over time.