Ukraine
In short
Ukraine is a large country located in Eastern Europe, bordered by Russia, Belarus, Poland, Slovakia, Hungary, Romania, and Moldova. Its capital and largest city is Kyiv.
In plain words
It is the second-largest nation on the European continent. It has coastlines along the Black Sea and the Sea of Azov.
A simple example
A traveller flying from Warsaw to Kyiv would be moving from Poland into Ukraine.
Why it matters
Its size and location make it a key part of European geography and politics. It serves as a major link between Eastern and Western Europe.
Easy to mix up
Do not confuse Ukraine with Ukrayina, which is the name used in the local language, or with the United Kingdom.