nack

As verbs the difference between nark and nack

is that nark is (slang) to serve or behave as a spy or informer while nack is (computing) to acknowledge negatively; to send a nak signal to.

As a noun nark

is (british|slang) a police spy or informer or nark can be (narcotics officer).

As verbs the difference between dack and nack

is that dack is (australia|informal) to pull down someone's trousers as a practical joke while nack is (computing) to acknowledge negatively; to send a nak signal to.

As verbs the difference between sack and nack

is that sack is to put in a sack or sacks while nack is to acknowledge negatively; to send a NAK signal to.

As a noun sack

is a bag; especially a large bag of strong, coarse material for storage and handling of various commodities, such as potatoes, coal, coffee; or, a bag with handles used at a supermarket, a grocery sack; or, a small bag for small items, a satchel.

As verbs the difference between lack and nack

is that lack is while nack is (computing) to acknowledge negatively; to send a nak signal to.

As verbs the difference between gack and nack

is that gack is to make a 'gack' noise while nack is (computing) to acknowledge negatively; to send a nak signal to.

As an interjection gack

is (often|repeated several times) the sound of a cat coughing up a hairball.

As a noun rack

is dress, skirt.

As a verb nack is

(computing) to acknowledge negatively; to send a nak signal to.

As a noun fack

is one of the four stomachs of a ruminating animal; rumen; paunch.

As a verb nack is

(computing) to acknowledge negatively; to send a nak signal to.

As verbs the difference between nock and nack

is that nock is to fit an arrow against the bowstring of a bow or crossbow while nack is (computing) to acknowledge negatively; to send a nak signal to.

As a noun nock

is either of the two grooves in a bow that hold the bowstring.

As verbs the difference between cack and nack

is that cack is (of a bird) to squawk or cack can be to defecate or cack can be (australian slang) to laugh while nack is (computing) to acknowledge negatively; to send a nak signal to.

As a noun cack

is a squawk or cack can be an act of defecation or cack can be (slang) penis.

As an adjective wack

is egregious.

As a noun wack

is an eccentric; an oddball; a weirdo.

As a verb nack is

(computing) to acknowledge negatively; to send a nak signal to.