levels
n. countablen. the amount, height, or position of something compared to other things. You can use it to talk about how much of something exists or how high it is.
n. the specific amount, intensity, or height of something relative to a scale or standard. Often used to describe physical height or abstract degrees of progress and quality.
The water levels in the lake are very low this summer.
Students are divided into different classes based on their current levels of English proficiency.
The report indicates that carbon dioxide levels have reached a historic peak, necessitating immediate policy interventions to mitigate the long-term environmental impact.
Commonly used with the preposition 'of' to specify the substance or quality being measured.