optimum
Definitions
The best or most favorable point, level, or condition
最佳点，最优条件
Most favorable; best under the given circumstances
最佳的，最有利的
Root Breakdown
Root-derivedoptim (best) + the Latin neuter noun ending -um, kept whole, so optimum still looks like a Latin word (plural optima or optimums). As a noun it names the best point itself — the optimum is the sweet spot where conditions are most favorable. As an adjective it overlaps with optimal but is the less common of the two.
Root optim still carries 7 more wordsUsage Guide
- As a noun (most common): find the optimum, reach an optimum, somewhere near the optimum — names the best point itself.
- As an adjective: optimum temperature, optimum conditions — interchangeable with optimal, but optimal is more usual in modern writing.
- Plural: both optima (Latin) and optimums (English) are accepted; optima is more formal/scientific.
Example Sentences
- 1.
Engineers adjusted the pressure until the engine reached its optimum.
- 2.
These seeds germinate best at an optimum temperature of around 20°C.
- 3.
There is an optimum between working too little and burning out.
Easily Confused
optimum vs optimal — Same Latin root, same meaning. The useful split: optimum is the better noun ('find the optimum'), optimal is the better adjective ('the optimal choice'). You rarely go wrong using optimum for the thing and optimal for the description.