1) Apple cultivar 
Antonovka or Antonówka is a group of late-fall or early-winter apple cultivars with a strong acid flavor that have been popular in Russia (Soviet Union and the Russian Empire) as well as in Poland. The most popular Russian variety is Common Antonovka (Антоновка обыкновенная), from which other cultivars are derived. In Poland,...[rural locality] Antonovka (Антоновка) is the name of several rural localities in Russia. ...
Antonovka is a variety of apple.