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WordBand 4.5–5.5Core (NGSL)
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/tɹiː/
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Related words
More in Environment →contaminationnounThe state of being made dirty or unsafe by a harmful substance.
phase outPhrasal verbTo stop using something gradually.
erosionnounThe slow wearing away of something over time.
batterynounA small container that stores electricity to power a device.
volcanonounA mountain with an opening through which hot melted rock and gas can escape.
geysernounA natural spring that sends hot water and steam shooting into the air.
tundranounA cold, flat region with frozen soil where no trees can grow.
scarcitynounA situation in which there is not enough of something.
Source: New General Service List (Browne, Culligan & Phillips) (CC BY-SA 4.0); Wiktionary (CC BY-SA 3.0); Tatoeba (CC BY 2.0 FR)