Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
On Wednesday morning, schools in the Washington DC area also cancelled outdoor activities as air quality levels were labelled "code red", while Detroit was listed as the fifth worst major metropolitan area in the world on IQAir's air pollution rankings.
Source: https://www.bbc.co.uk/news/world-us-canada-65828469?at_medium=RSS&at_campaign=KARANGA