A presentation was given by Dr. Muhammad Omer Ahmed at the Department of English for the English Department teachers on Monday November 4th entitled “Similarities and Differences between Languages”. Various definitions of language by different types of people were introduced. Certain common features of human languages were mentioned, then the factors that determine similarities between languages were exhibited like ( Genetic, Areal and Typo logical ones). Finally, several minutes were devoted for answering questions and explaining certain comments.