This page is about displaying the word ‘lambda’ using the Greek letter. See also PrettySymbol. Using prettify-symbols-modeEmacs 24.4 introduced a minor mode called ‘prettify-symbols-mode’. (defun my-pretty-lambda () "make some word or string show as pretty Unicode symbols" (setq prettify-symbols-alist '( ("lambda" . 955) ; λ ))) (add-hook 'scheme-mode-hook 'my-pretty-lambda) (global-prettify-symbo