The METEOR score is a metric used to evaluate machine translation by comparing it to human translations. It takes into account both the accuracy and fluency of the translation, as well as the order in which words appear. The METEOR score ranges from 0 to 1, with a higher score indicating better translation quality.
For instance, a machine translation system may receive a METEOR score of 0.8 for translating a sentence from English to Spanish, indicating that it performed well in terms of accuracy and fluency, but could improve in terms of word order.