This book is an account of the relationship between language and gender. It begins with a multi-disciplinary perspective of the notion of variability in L2 learners' use of language and performance in various language tasks. Chapter (1), then, focus on the premise that ''adult L2 production at any given point in the acquisition process is highly variable''. The second chapter focuses on sex-related variability in L2 learners' performance in three language skills: listening, reading and structure and written expressions. Chapter (3) focuses on the relationship between language and gender with evidence from miller's death of a salesman.