A Covid-19 vaccine Image source, Reuters Image caption, Words related to vaccines, including double-vaxxed, unvaxxed and anti-vaxxer, spiked in frequency in 2021 Vax has been chosen as the word of the year by lexicographers at the Oxford English Dictionary (OED). Words related to vaccines have spiked in frequency in 2021 due to Covid, with double-vaxxed, unvaxxed and anti-vaxxer all seeing a surge in use. OED senior editor Fiona McPherson says vax was an obvious choice as it -- * vaxxie n. A photograph of oneself taken during or immediately before or after a vaccination, especially one against Covid-19, and typically shared on social media; a vaccination selfie * anti-vax adj. Opposed to vaccination * anti-vaxxer n. A person who is opposed to vaccination * double-vaxxed adj. Having received two doses of a vaccine Presentational grey line