sneak

1 If you sneak somewhere, you go there quietly, trying to avoid being seen or heard.
   I didn't notice Bob sneaking up behind me.
   VB WITH ADJUNCT
2 If you sneak something somewhere, you take it there secretly.
   Eugene would sneak food down to his room.
   VB WITH OBJ AND ADJUNCT
3 If you sneak a look at someone or something, you secretly have a quick look at them.
   VB WITH OBJ AND ADJUNCT
4 A sneak preview of something is an unofficial opportunity to look at it before it is officially shown to the public.
   We were shown his latest masterpiece in a sneak preview.
   ATTRIB ADJ