How to say once only in different languages

You can say once only as simultanément, en une fois in the following countries: Benin; Burkina Faso; Burundi; Central African Republic; Chad; Democratic Republic of the Congo; Djibouti; France; French Guiana; French Polynesia; French Southern Territories; Gabon; Guadeloupe; Guinea; Ivory Coast; Madagascar; Mali; Martinique; Mayotte; Monaco; Niger; Republic of the Congo; Reunion; Saint Barthelemy; Saint Martin; Saint Pierre and Miquelon; Senegal; Togo;

You can say once only as simultaneamente 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 once only as ineens in the following countries: Aruba; Belgium; Curacao; Netherlands; Netherlands Antilles; Sint Maarten; Suriname;

You can say once only as uma vez, ao mesmo tempo in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say once only as gleichzeitig in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say once only as una tantum in the following countries: Italy; San Marino;

You can say once only as taget, samtidigt in the following countries: Aland Islands; Sweden;

You can say once only as адначасна in the following countries: Belarus;

You can say once only as еднократно in the following countries: Bulgaria;

You can say once only as jednorázově in the following countries: Czechia;

You can say once only as samtidigt in the following countries: Denmark;

You can say once only as korraga in the following countries: Estonia;

You can say once only as vienlaikus in the following countries: Latvia;

You can say once only as единовременно in the following countries: Russia;

You can say once only as súčasne in the following countries: Slovakia;

You can say once only as одноразово in the following countries: Ukraine;