This is the 30th most frequent Slovak word.
covid
The Slovak word "covid" refers to the COVID-19 disease caused by the coronavirus SARS-CoV-2.
Here, 'covid' is used as a noun to refer to the specific virus/disease that impacted the world.
Covid spôsobil veľa zmien vo svete.
Covid caused many changes in the world.
In this sentence, 'covidu' is the genitive form of the noun, used to indicate association with the pandemic.
Počas pandémie covidu ľudia nosili rúška.
During the covid pandemic, people wore masks.
Here, 'covide' is used in the locative case, showing the grammatical use of the noun in a specific context of location or topic.