What does "optimum" mean?

The best or most favorable condition, or the greatest amount or degree possible under specific sets of comparable circumstances.

What is a synonym for "optimum"?

Common synonyms include: best, best, best environment, best value, capital, champion.

/ˈɑptɪməm/ adj, noun

adj, noun ·Moderate ·College level

Noun

1
The best or most favorable condition, or the greatest amount or degree possible under specific sets of comparable circumstances.
2
most favorable conditions or greatest degree or amount possible under given circumstances wordnet
3
Any long period of time marked by a persistently warm climate; a climatic optimum.

Adjective

1
The best or most advantageous; surpassing all others. not-comparable
"optimum conditions for climbing"

Adjective

"The data suggest that the optimum length of a lecture may be 30 instead of 60 minutes."

From New Latin, neuter of Latin optimus (“best, very good”), from the root in ops (“work”) or omnis (“all”).