Rajpal Advanced Learner's Hindi-English Dictionary is the culmination of Dr. Hardev Bahri's lifelong expertise and experience. Dr. Bahri is acknowledged as India's foremost lexicographer whose contribution in this field is unparalleled. Dr. Bahri's most important contribution has been the introduction of the concept of a "learner's" dictionary which, with its emphasis on examples and usage goes beyond providing mere word meanings and actually teaches the use of the language. The first Indian bilingual dictionary based on this concept was the Rajpal Learner's Hindi-English Dictionary. Published in 1980, and in print since then, it is recognised as an important landmark in the field of bilingual dictionaries. While realising the important contribution that this dictionary has made to generations of students, Dr. Bahri was keenly aware of the need to make it more relevant to today's users of Hindi, both within and outside India. With this objective of fulfilling the need for a more contemporary and comprehensive dictionary, Dr. Bahri devoted ten years to creating and compiling this two-volume Rajpal Advanced Learner's Hindi-English Dictionary.