fight off

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fight off

To push back or defend against someone or something that is advancing. A noun or pronoun can be used between "fight" and "off." What is the best way to fight off an attacker? If you feel like you're getting a cold, these vitamin C tablets should help you to fight it off.
See also: fight, off
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

fight someone or something off

to repel an attack from someone or something. We fought the enemy attack off, but they returned almost immediately. She fought off the mosquitoes all evening. Jed fought the attacker off.
See also: fight, off
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

fight off

Defend against, drive back, as in I've been fighting off a cold all week. This figurative use of the term, originally meaning "to repel an enemy" dates from the early 1800s.
See also: fight, off
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

fight off

v.
To defend against or drive back someone or something, such as a hostile force or an infection: The enemy is advancing, but the troops will fight them off. The doctor told me to rest so I can fight off this cold.
See also: fight, off
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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References in periodicals archive ?
Somewhere down the line, everyone will be saying, 'Wow, what a player' and we'll be fighting off bids."
FIGHTING OFF INFECTION A third emerging theory to explain the pathology of cystic fibrosis links abnormally acidic conditions inside cystic fibrosis lung cells to the ease with which bacteria can grow and live inside the respiratory tract.
Patients have a hard time fighting off infection, and they react to medication in unpredictable ways.
A GUTSY pensioner has been hailed a hero after fighting off three armed raiders who tried to break into his house.
A computer virus released in March aptly demonstrated the need for more-effective ways of fighting off computer viruses.
5 IT FIGHTS OFF COLDS Enjoyable experiences encourage the release of Oantibodies, fighting off invading viruses and bacteria.
The human immune system faces a losing battle in fighting off the parasites that cause malaria.
After fighting off her attacker, terrified Caitlin ran home and told her parents what happened.
The Yanomami's reliance on antibodies probably represents an ancient method of fighting off microorganisms.
THE glands in our neck can become swollen and sore from time to time, especially when we're fighting off a cold or a bug.
The body may rely on such antibodies to clear the blood of HIV-tainted cells, an important step in fighting off infection.