Wiktionary(0.00 / 0 votes)Rate this definition: 1  roster(Noun) A list of names, usually for an organization of some kind such as military officers and enlisted personnel enrolled in a particular unit; a muster roll; or a sports team, with the names of players who are eligible to be placed in the lineup for a particular game.
Dutch is the official language in Belgium. Dutch is the official language in Belgium. French-speakers often pejoratively call the Dutch language used by Flemings Flemish but it is Dutch nevertheless.
Although there are three official languages in Belgium (French, Dutch and German), the one spoken most often, by about 60% of the population, is Flemish, which is the local va â¦ riety of Dutch. 2 people found this useful. Tony Ortiz.n the Flemish region, Dutch is the only official language. In the Wallon region, French is the only official language. The Brussels Capital Region is official bi-lingual French/Flemish. There is also a part of people who speak no one of the official languages.