How to say supposition in different languages

You can say supposition as 假想 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say supposition as supposizione in the following countries: Italy; San Marino;

You can say supposition as antakelse in the following countries: Norway; Svalbard and Jan Mayen;

You can say supposition as formodning in the following countries: Denmark;

You can say supposition as oletamine in the following countries: Estonia;

You can say supposition as feltételezés in the following countries: Hungary;

You can say supposition as domnienka in the following countries: Slovakia;