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optimum

C2
Fairly common

Pronunciation

UK

  • /ˈɒptɪməm/

US

  • /ˈɑptəməm/

Meanings

Adjective

  1. best or most favorable for a particular purpose or situation

Noun

  1. the most favorable level, amount, or condition for a particular purpose

  2. the best achievable value, solution, or operating point under defined criteria

Beyond the definition

Imagine a surfer riding a wave—they're not necessarily looking for the biggest wave, but the optimum one; that perfect balance of size, shape, and power to give them the best ride. "Optimum" describes the very best condition or situation for something to happen, thrive, or function. It's not just "good"; it's the absolute best possible outcome for a specific goal. A gardener strives for optimum growing conditions for their plants, balancing sunlight, water, and nutrients. A chef aims for the optimum temperature when searing a steak. Often used interchangeably with "optimal," this word suggests peak performance and the most advantageous point of operation.

Examples

  1. 1

    Medicine storage

    Store the medicine at the optimum temperature.

  2. 2

    Growing conditions

    Plants need light, water, and soil in the right amounts to grow under optimum conditions.

  3. 3

    Family schedule

    The timetable is not optimum for parents who have to pick up children after work.

  4. 4

    Machine operation

    The machine runs at optimum speed after it has warmed up.

More examples
  1. 5

    Product pricing

    We tested several prices before finding the optimum for the new product.

See also

Similar

Shades of meaning

Contrast

  • suboptimal
  • worst

Do not confuse

Used with (collocations)

  • optimum conditions
  • optimum level
  • optimum temperature
  • optimum performance

Word family

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Forms and spellings

3 forms open this card.

Main spelling

  • optimumnounadjective

Forms

  • optimapluralnounadjective
  • optimumspluralnounadjective