Meir Medan, son of Baruch and Sarah, was born in Krakow, Poland, in 1915. He attended a Hebrew school in the city. In 1933 he immigrated to Israel and worked in construction and on orchard farms. In 1939 he was appointed to editorial assistant for the Ben-Yehuda Dictionary. At the same time, he served as commander of the Jerusalem district of the “Brit Haheshmonaim” religious youth movement, and as senior commander in Etzel under the leadership of David Raziel. In 1943, he participated in a meeting between the heads of the “Brit Haheshmonaim” and Yitzhak Shamir after his escape from prison, in which the decision was made to join the Lehi. Meir joined the Lehi Underground and served as Operations Coordinator in Jerusalem under Yitzhak Shamir “Michael”.
In 1945 he married Leah, daughter of Yisaschar Dov Weiss. In 1947 he was imprisoned by the British and interrogated in Qishle. He was later transferred to the detention camp in Latrun, where he spent a month until his release. In 1948 he was appointed Secretary of the Hebrew Language Committee in Jerusalem, and with the establishment of the Academy of the Hebrew Language he became the Scientific Secretary. He retired in 1980. He received the Lehi badge and the State Warriors badge. Meir died on 14th of September 1989 and was laid to rest in the Sanhedriya Cemetery in Jerusalem.