Are Ukranians Refugees?

More than two million people, so far, are estimated to be in poland. And i think about half a million in romania, and about 350 thousand in moldover all these neighbouring countries to an and if we move to japan, how many people fleing the war in ukraine has japan accepted? So far, as of wednesday last week, the goverment has said that japan has accepted 73 people who fled ukraine. But they are not considered refugees. They are just people that japan accepted from a ukrane. The government is referring to the ukranians it's accepting as evacues rather than refugees. Why is that