Ключевые слова: background, blackboard, cloud, communication, concept, definition, design, different, diversity, dutch, education, english, foreign, forest, french, german, global, grammar, greet, hand, hebrew, hello, international, language, learning, meet, multilingual, multinational, spanish, speak, speech, tag, tagcloud, talking, tourism, translation, travel, university, vacation, variety, various, vocabulary, white, word, worldwide,