an inspection or viewing of something before it is bought or becomes generally known and available:you can get a sneak preview of the pictures on sale
a showing of a movie, play, exhibition, etc., before its official opening.
a short extract shown in a movie theater as publicity for a forthcoming film.
a commentary on or appraisal of a forthcoming film, play, book, etc., based on an advance viewing.
Computing a facility for inspecting the appearance of a document before it is printed.
verb
[with object]
display (a product, movie, play, etc.) before it officially goes on sale or opens to the public:the company will preview an enhanced version of its database
see or inspect (something) before it is used or becomes generally available:the teacher should preview teaching aids to ensure that they are at the right level
comment on or appraise (a forthcoming event) in advance:next week we’ll be previewing the new season
