How to say at once in different languages

You can say at once as immediatement, aussitôt, en même temps, d'un coup, à la fois, tout d'un coup, et d'un, d'un trait, à la volée, au premier coup 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 at once as en seguida, simultaneamente, a una, de repente, al mismo tiempo, a la vez, de una vez 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 at once as onmiddelijk, ineens, opeens, onmiddellijk in the following countries: Aruba; Belgium; Curacao; Netherlands; Netherlands Antilles; Sint Maarten; Suriname;

You can say at once as de uma vez só, de vez in the following countries: Angola; Brazil; Cabo Verde; Guinea-Bissau; Mozambique; Portugal; Sao Tome and Principe;

You can say at once as 立刻 in the following countries: China; Hong Kong; Macao; Taiwan;

You can say at once as auf einmal, gleichzeitig, auf anhieb in the following countries: Austria; Germany; Liechtenstein; Switzerland;

You can say at once as samanaikaisesti, kerrallaan in the following countries: Finland; Northern Mariana Islands;

You can say at once as με τη μία in the following countries: Cyprus; Greece;

You can say at once as immediatamente, contemporaneamente, subito, in una volta in the following countries: Italy; San Marino;

You can say at once as straks in the following countries: Norway; Svalbard and Jan Mayen;

You can say at once as genast in the following countries: Aland Islands; Sweden;

You can say at once as адначасова, разам, ураз in the following countries: Belarus;

You can say at once as наведнъж in the following countries: Bulgaria;

You can say at once as najednou, okamžitě in the following countries: Czechia;

You can say at once as på en gang, samtidigt, straks in the following countries: Denmark;

You can say at once as korraga, samaaegselt, kohe in the following countries: Estonia;

You can say at once as egyszerre in the following countries: Hungary;

You can say at once as vienlaicīgi, uzreiz in the following countries: Latvia;

You can say at once as iškart, nedelsiant in the following countries: Lithuania;

You can say at once as natychmiast, naraz in the following countries: Poland;

You can say at once as однажды, враз, разом, зараз in the following countries: Russia;

You can say at once as naraz, okamžite in the following countries: Slovakia;

You can say at once as bir kerede, hemen, birden, bir defada in the following countries: Turkey;

You can say at once as зараз, разом, враз in the following countries: Ukraine;