Terminology theory developed as result of linguists' research and practical work of technical specialists aimed at standardization of terminology, which was required for effective communication among specialists. Rapid development of technologies and social sphere introduced new concepts and terms. Development of public sphere as a specific field of people activities introduced a lot of specific notions, which have to be designated and used in various settings. Difficulties which new terminology creates in communication necessitated the development of all kinds of terminological vocabularies. The importance of language for public services studies is emphasised by the fact that the specific terminology may create obstacles not only in communication with foreign residents, but community customers and between public servants themselves. Language as service provided within the sphere of public services is of growing importance in multicultural communities. Language and translation in the sphere of public services requires qualified specialists and new competences in variety of settings public services cover from communal to legal. The teaching and learning terminology have to be considered from various approaches: theoretical, educational and practical.