From Longman Dictionary of Contemporary Englishdogdog1 /dɒɡ $ dɒːɡ/ ●●● S1 W1 noun [countable] 1 animalHBA a common animal with four legs, fur, and a tail. Dogs are kept as pets or trained to guard places, find drugs etc → puppy I could hear a dog barking. He's taken the dog for a walk. We used to have a dog when I was young. the most popular breed of dog2 male animalHBA a male dog, fox, or wolf → bitch3 womanINSULT informal not polite an offensive word meaning an unattractive woman4 → dog eat dog5 → be going to the dogs6 dishonest informal not polite an offensive word for an unpleasant or dishonest manYou dirty dog!7 → a dog’s life8 → make a dog’s breakfast of something9 → a dog’s dinner10 → not have a dog’s chance11 → every dog has its/his day12 → like a dog with two tails13 → a dog in the manger14 → dogs15 poor qualityBAD American English informal something that is of very poor quality16 → dog and pony show17 → be the dog’s bollocks18 → put on the dog19 → the dogs → the hair of the dog at hair(13), → shaggy dog story, → as sick as a dog at sick1(1), → let sleeping dogs lie at sleep1(7), → the tail wagging the dog at tail1(11), → top dog, → treat someone like a dog at treat1(1)COLLOCATIONSverbshave a dog (=keep one as a pet)We have one dog and two cats.walk a dog/take a dog for a walkShe loves walking her dogs on the beach.a dog bites somebodyTheir dog had bitten a little girl on the leg.a dog barks (=makes short loud sounds)The dog barks every time someone comes to the door.a dog yaps (=barks – used of small dogs)A little dog was yapping at her heels.a dog growls (=makes a long deep angry sound)The dog growled at me as I walked towards it.a dog snarls (=shows its teeth and makes an angry sound)When a dog snarls, it is threatening attack.a dog whines (=makes a long high sound because it is unhappy or in pain)I could hear the dogs whining outside the door.a dog howls (=makes a long loud sound like a wolf)We knew something was wrong because the dogs were howling.a dog pants (=breathes quickly usually with its tongue hanging out)The dog was panting heavily beside her.a dog wags its tail (=moves its tail from side to side to show pleasure)The dog stood up and wagged his tail.ADJECTIVES/NOUN + doga pet dog (=that you keep in your house)Some owners give their pet dogs too much food.a family dog (=that belongs to a family)Labradors make a great family dog.a wild dogPacks of wild dogs roamed the countryside.a stray dog (=a pet dog that is lost)He was always bringing home stray dogs.a guide dog (=trained to guide a blind person)No dogs except guide dogs are allowed in the store.a guard dog (=trained to guard a building)The guard dog growled at him.a police dog (=trained to help the police)Police dogs helped in the search for the missing child.a sniffer dog British English (=trained to find drugs or bombs)Police and sniffer dogs have become a regular presence at the airport.dog + NOUNdog fooda can of dog fooda dog ownerDog owners must be responsible for controlling their animals.a dog lover (=someone who loves dogs)Britain is a nation of dog lovers.a dog handler (=someone whose job is training and working with dogs)Dog handlers decided that the dog was dangerous and should be shot.a dog show (=competition for the best dog)Crufts is the largest dog show in the world.phrasesa breed of dog (=a type of dog)It is one of the most fashionable breeds of dog.a pack of dogs (=a group of wild dogs or stray dogs)There are packs of wild dogs in the mountains.Good dog! (=said to a dog when it obeys you)Sit! Good dog!Beware of the dog! (=a sign warning people that there is a dog inside a place)There was a sign on the gate saying 'Beware of the dog!'.
Examples from the Corpusdog• It was a dog of a movie.• Most of the women he goes out with are dogs.• the family dog