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shun /ʃʌ n/ (shuns , shunning , shunned ) VERB If you shun someone or something, you deliberately avoid them or keep away from them. □ [V n] From that time forward everybody shunned him. □ [V n] He has always shunned publicity.

shunt /ʃʌ nt/ (shunts , shunting , shunted )

1 VERB [usu passive] If a person or thing is shunted somewhere, they are moved or sent there, usually because someone finds them inconvenient. [DISAPPROVAL ] □ [be V -ed prep/adv] He has spent most of his life being shunted between various foster families.

2 VERB When railway engines shunt wagons or carriages, they push or pull them from one railway line to another. □ [V n prep/adv] The GM diesel engine shunted the coaches to Platform 4.

shush /ʃʊ ʃ, ʃʌ ʃ/ (shushes , shushing , shushed )

1 CONVENTION You say shush when you are telling someone to be quiet. □  Shush! Here he comes. I'll talk to you later.

2 VERB If you shush someone, you tell them to be quiet by saying 'shush' or 'sh', or by indicating in some other way that you want them to be quiet. □ [V n] Frannie shushed her with a forefinger to the lips. [Also V ]

shut ◆◇◇ /ʃʌ t/ (shuts , shutting ) The form shut is used in the present tense and is the past tense and past participle. 1 VERB If you shut something such as a door or if it shuts , it moves so that it fills a hole or a space. □ [V n] Just make sure you shut the gate after you. □ [V ] The screen door shut gently. ● ADJ [v-link ADJ ] Shut is also an adjective. □  They have warned residents to stay inside and keep their doors and windows shut.

2 VERB If you shut your eyes, you lower your eyelids so that you cannot see anything. □ [V n] Lucy shut her eyes so she wouldn't see it happen. ● ADJ [v-link ADJ ] Shut is also an adjective. □  His eyes were shut and he seemed to have fallen asleep.

3 VERB If your mouth shuts or if you shut your mouth, you place your lips firmly together. □ [V ] Daniel's mouth opened, and then shut again. □ [V n] He opened and shut his mouth, unspeaking. ● ADJ [v-link ADJ ] Shut is also an adjective. □  She was silent for a moment, lips tight shut, eyes distant.

4 VERB When a store, bar, or other public building shuts or when someone shuts it, it is closed and you cannot use it until it is open again. □ [V n] There is a tendency to shut museums or shops at a moment's notice. □ [V ] What time do the pubs shut? ● ADJ [v-link ADJ ] Shut is also an adjective. □  Make sure you have food to tide you over when the local shop may be shut.

5 PHRASE If you say that someone shuts their eyes to something, you mean that they deliberately ignore something which they should deal with. [DISAPPROVAL ] □  We shut our eyes to the plainest facts, refusing to admit the truth.

6 PHRASE If someone tells you to keep your mouth shut about something, they are telling you not to let anyone else know about it.

7 PHRASE If you keep your mouth shut , you do not express your opinions about something, even though you would like to. □  If she had kept her mouth shut she would still have her job now.

▸  shut down

1 PHRASAL VERB If a factory or business shuts down or if someone shuts it down , work there stops or it no longer trades as a business. □ [V P ] Smaller contractors had been forced to shut down. □ [V P n] It is required by law to shut down banks which it regards as chronically short of capital. □ [V n P ] Mr Buzetta sold the newspaper's assets to its competitor and shut it down.

2 → see also shutdown

▸  shut in