Widespread concern about environmental degradation caused by discarded plastics has led Britain's Collins Dictionary to name "single-use" as its English-language word of the year for 2018.
It beats "MeToo" and "whitewash" to take first place in the top 10 list released last Wednesday.
Collins said each nominated word "reflects an ever-evolving culture and the preoccupations of those who use it".
Collins said "single-use", which describes one-use-only items "whose unchecked proliferation are blamed for damaging the environment and affecting the food chain", has undergone a fourfold increase in usage since 2013.
"Vegan", a word describing people who avoid animal products, and "plogging", a fitness craze born in Scandinavia that combines jogging with picking up litter, were other environment-related words to make the list.
Helen Newstead, Collins' head of language content, said: "This has been a year where awareness and often anger over a variety of issues has led to the rise of new words and the revitalization and adaptation of old ones."