Sentence:  From our viewpoint, getting a <WSD>language nest</WSD> established is essential. It is very difficult to remain motivated to use the target language on a regular basis if there is no circumstance that necessitates it. 
Meaning of the word marked with <WSD> tags:  A language revitalisation programme in which children and non-native speakers acquire the endangered language through immersion in special-purpose locations called 'nests'.