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1. To go stealthily or furtively
   "..stead of sneaking around spying on the neighbour's house";
   - mouse, creep, pussyfoot [informal]
    
2. Put, bring, or take in a secretive or furtive manner
   "sneak a look"; "sneak a cigarette"
    
3. [informal] Take by theft
   - hook [informal], snitch [informal], thieve, cop [informal], knock off [informal], glom [N. Amer, informal], pilfer, cabbage [informal], purloin, pinch [Brit, informal], abstract, snarf [N. Amer, informal], swipe [informal], filch [informal], nobble [Brit, informal], lift, whip [Brit, informal], nick [Brit, informal], snatch [informal], blag [Brit, informal]
    
4. Pass on stealthily
   "He sneaked me the key when nobody was looking";
   - slip

1. A person who is regarded as underhanded and furtive and contemptible
    
2. Someone who prowls or sneaks about; usually with unlawful intentions
   - prowler, stalker
    
3. Someone acting as an informer or decoy for the police
   - fink [N. Amer, informal], snitch [informal], snitcher [informal], stoolpigeon [informal], stool pigeon [informal], stoolie [N. Amer, informal], canary [N. Amer], snout [Brit, informal], grass [Brit, informal]
    
4. [N. Amer, informal] A canvas shoe with a pliable rubber sole
   - gym shoe, sneaker, tennis shoe, trainer [Brit], runner [Austral, NZ, Ireland], tackie [Ireland, S.Africa, informal], takkie [Ireland, S.Africa, informal]

1. Marked by quiet and caution and secrecy; taking pains to avoid being observed
   "a sneak attack";
   - furtive, sneaky, stealthy, surreptitious

Derived forms: sneaked, sneaking, snuck, sneaks

See also: concealed

Type of: act, betrayer, blabber [informal], disagreeable person, give, hand, informer, interloper, intruder, move, pass, pass on, rat [informal], reach, rip [N. Amer, informal], rip off [informal], shoe, squealer, steal, trespasser, turn over, unpleasant person, walk

Encyclopedia: Sneak