For all questions, assume the following definition has been executed:
(define wd 'view)
(word 'pre wd)
wd
in this expression?
-- view
preview
((lambda (wd) (word 'pre wd)) 'fix)
wd
in this expression? -- fix
prefix
(every (lambda (wd) (word 'pre wd)) '(view fix tense))
wd
in this expression?
-- view
, fix
, and tense
(preview prefix pretense)