How to say crux in different languages

You can say crux as quid in the following countries: Argentina; Bolivia; Chile; Colombia; Costa Rica; Cuba; Dominican Republic; Ecuador; El Salvador; Equatorial Guinea; Guatemala; Honduras; Mexico; Nicaragua; Panama; Paraguay; Peru; Spain; Uruguay; Venezuela;

You can say crux as 症结 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say crux as kern in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say crux as ydin in the following countries: Finland; Northern Mariana Islands;

You can say crux as punto cruciale in the following countries: Italy; San Marino;

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

You can say crux as krux in the following countries: Aland Islands; Sweden;

You can say crux as сутнасць in the following countries: Belarus;

You can say crux as загадка in the following countries: Bulgaria;

You can say crux as crux in the following countries: Czechia;

You can say crux as kernen in the following countries: Denmark;

You can say crux as tuum in the following countries: Estonia;

You can say crux as nehézség in the following countries: Hungary;

You can say crux as sedno sprawy in the following countries: Poland;

You can say crux as суть in the following countries: Russia;

You can say crux as püf noktası in the following countries: Turkey;

You can say crux as суть in the following countries: Ukraine;