This is the 23rd most frequent Arabic word.
روسيا
"Russia" (a country in Eastern Europe and North Asia).
In this sentence, 'روسيا' refers to the country named Russia being the object of Ahmed's action of visiting.
زار أحمد روسيا العام الماضي.
Ahmed visited Russia last year.
Here, 'روسيا' serves as the subject of the sentence, referring to the country concerning its size.
روسيا تعتبر من أكبر الدول في العالم.
Russia is considered one of the largest countries in the world.
In this example, 'روسية', a derivative of 'روسيا', is an adjective describing culture, showing its linguistic versatility.