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Definition of flu noun from the Oxford Advanced Learner's Dictionary

flu

noun
 
/fluː/
 
/fluː/
(often the flu)
(also formal influenza)
[uncountable]
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  1. a serious disease caused by a virus, that causes a high temperature, severe pains and weakness
    • The whole family has the flu.
    • (British English) She's got flu.
    • She was off work for four days because of a bout with the flu.
    • a flu outbreak/epidemic/pandemic
    • a flu vaccine/vaccination
    • (British English, informal) a flu jab
    • (especially North American English, informal) a flu shot
    • He is suffering from flu-like symptoms.
    Homophones flew | flu | flueflew   flu   flue
     
    /fluː/
     
    /fluː/
    • flew verb (past tense of fly)
      • The project team flew to Denver to meet the company's board.
    • flu noun
      • She’s had a nasty dose of flu.
    • flue noun
      • Make sure that the flue is clean so that smoke doesn't come back into the house.
    see also bird flu, chicken flu, gastric flu, man flu, Spanish flu, swine flu
    Collocations IllnessesIllnessesBecoming ill
    • catch a cold/​an infectious disease/​the flu/(British English) flu/​pneumonia/​a virus/(informal) a bug
    • get (British English) ill/(North American English) sick/​a disease/​AIDS/​breast cancer/​a cold/​the flu/(British English) flu/​a migraine
    • come down with a cold/​the flu/(British English) flu
    • contract a deadly disease/​a serious illness/​HIV/​AIDS
    • be infected with a virus/​a parasite/​HIV
    • develop cancer/​diabetes/​a rash/​an ulcer/​symptoms of hepatitis
    • have a heart attack/​a stroke
    • provoke/​trigger/​produce an allergic reaction
    • block/​burst/​rupture a blood vessel
    • damage/​sever a nerve/​an artery/​a tendon
    Being ill
    • feel (British English) ill/​nauseous/​queasy
    • be running (British English) a temperature/(North American English) a fever
    • have a head cold/​diabetes/​heart disease/​lung cancer/​a headache/(British English) a high temperature/(North American English) a fever
    • suffer from asthma/​malnutrition/​frequent headaches/​nausea/​bouts of depression/​post-traumatic stress disorder
    • be laid up with/ (British English) be in bed with a cold/​the flu/(British English) flu/​a migraine
    • nurse a cold/​a headache/​a hangover
    • battle/​fight cancer/​depression/​addiction/​alcoholism
    Treatments
    • examine a patient
    • diagnose a condition/​disease/​disorder
    • be diagnosed with cancer/​diabetes/​schizophrenia
    • prescribe/​be given/​be on/​take drugs/​medicine/​medication/​pills/​painkillers/​antibiotics
    • treat somebody for cancer/​depression/​shock
    • have/​undergo an examination/​an operation/​surgery/​a kidney transplant/​therapy/​chemotherapy/​treatment for cancer
    • have/​be given an injection/(British English) a flu jab/(North American English) a flu shot/​a blood transfusion/​a scan/​an X-ray
    • cure a disease/​an ailment/​cancer/​a headache/​a patient
    • prevent the spread of disease/​further outbreaks/​damage to the lungs
    • be vaccinated against the flu/(British English) flu/​the measles/(British English) measles/​polio/​smallpox
    • enhance/​boost/​confer/​build immunity to a disease
    Topics Health problemsa2
    Oxford Collocations Dictionaryadjective
    • mild
    • bad
    • gastric
    … of flu
    • bout
    • case
    • dose
    verb + flu
    • be in bed with
    • have
    • suffer from
    flu + noun
    • bug
    • virus
    • epidemic
    phrases
    • a bout with the flu
    See full entry
    Word Originmid 19th cent.: abbreviation.
See flu in the Oxford Advanced American Dictionary
previously
adverb
 
 
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