IPA: /pəˈluːtənt/
KK: /pəˈluːtənt/
A substance that makes the environment dirty or harmful, especially by contaminating air, water, or soil.
The factory was fined for releasing a dangerous pollutant into the river.
Pollutant → It is formed from "pollut-" (from Latin "polluere", meaning to defile or make dirty) and "-ant" (a suffix used to form nouns indicating an agent). The word "pollutant" refers to a substance that causes pollution or makes something dirty.
Think of something that 'makes dirty' ('pollut-') and the '-ant' means it is an agent doing the action. This helps you remember that a pollutant is something that causes pollution.
No commonly confused words.