find synonyms

match the following words with their dèfinitions

1) mother tongue

2)mutaully unintelligible

3)hindrance

4)vehicle

5)officail language

6)national language

now the deffinitions

1)obstacle-bareir

2)language of administration and press

3)native language

4)language spoken by the people of a country

5)wich can not understood by the 2 sides

6)tool-means

thank you , i hope to tell us more information

where is the responsable about languages