English and Arabic have different word formation processes with which translation students must be familiar. Results of a needs-assessment questionnaire showed that junior translation students almost had no knowledge of English word formation processes such as compounding, derivation, back formation, conversion, extension, blending, clipping, acronyms and abbreviations, onomatopoeia, borrowings and neologisms and had difficulty translating lexical items in each category into Arabic. Results of a post-test showed that direct instruction in word formation processes was effective in developing students' awareness of similarities and differences between English and Arabic word formation processes and enhanced their ability to Arabize English technical terms.