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to fight off

to fight off

51 3.7
To keep away an attack, illness, or strong unwanted feeling
  • phrasal verb
  • /faɪt ɔf/
translation icon : repeler
  • So you want to, if at all possible, just do things to support your body as it fights off a virus.

We were built to fight off invaders, right?

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Examples

  • The lake's resident male was fighting off a young intruder intent on displacing him from his territory.

    Academic text (2010)
  • So you kind of need a high inflammatory response just to fight off infections.

  • There was no ally that I could count on to help me secure people to help me fight off a bad guy.

  • I'll help you fight off whatever comes out.

  • Hours earlier, their ship was sunk while trying to fight off a Japanese task force.

  • Labour stands for providing Ukraine with the arms it needs to fight off their invaders.

  • Infants have an immature immune system and it takes a long time for them to fight off infections.

  • The dog barked loudly to fight off the intruder who entered the yard.

  • She took some medicine to help her fight off the cold that was making her feel sick.

  • They worked together to fight off the attack and protect their home from danger.

Synonyms

to fight
vsto fight off
1.0

To try hard to oppose or overcome something difficult

stresses actual success in repelling threats or unwanted feelings rather than effort alone
to defend
vsto fight off
1.3

To protect people and things from attack or harm

is specifically about successfully repelling or resisting threats and unwanted feelings
to fight back
vsto fight off
188 3.3

Resist an attack or criticism by responding

is about repelling or resisting threats rather than responding with counterattack
to combat
vsto fight off
122 4.1

To fight something harmful like a disease or unfair treatment

focuses more narrowly on succeeding to repel or resist specific attacks or feelings
to hold off
vsto fight off
55 4.0

To stop an opponent from moving forward by keeping your position

is broader, covering success in repelling attacks or internal feelings
to ward off
vsto fight off
34 4.4

To keep harmful or unpleasant things away from you

focuses on actively succeeding in resistance rather than only prevention
to fend off
vsto fight off
34 3.9

Keep unwanted people or things away so they do not harm you

stresses success in resisting attacks or feelings rather than general defence
to repel
vsto fight off
21 4.2

Make someone or something move back and stay away, often by using force

emphasizes success in resisting threats or feelings rather than mere pushing back
to drive back
vsto fight off
19 4.1

Force someone or something to move away from danger

is about resisting or keeping threats away, not only making them retreat
to repulse
vsto fight off
7 7.0

To make someone or something go away

centres on succeeding against threats or emotions rather than only forceful rejection
to rebuff
vsto fight off
3 7.9

To drive back an attack or enemy force

covers repelling attacks or feelings more generally, not only formal contexts
to beat off
vsto fight off
  • Informal
1 8.1

Make animals or people who attack you go away

focuses on successfully repelling attacks or feelings rather than just using force
to fight down
vsto fight off
1 7.0

To try hard to hold back a strong feeling

is about resisting both attacks and unwanted feelings, not only inner suppression
to beat off with a stick
vsto fight off
  • Informal
8.8

Push away a lot of people or fans as a joke about being too popular

is the general idea of succeeding to repel threats or feelings without humour

Antonyms

187 4.1

To accept another person's control, often against your wishes

43 7.0

To accept something you tried to refuse

How Successful

to repel
21 4.2
to fight off
51 3.7
to resist
291 2.5
to tolerate
56 3.2
to succumb to
69 5.8

Surface Forms

fight off infinitive
fighting off present participle
fights off third person singular
fought off past
fought off past participle

Morphology

fight + off

The meaning 'to repel or resist' is directly derivable from combining 'fight' (to oppose or exert effort against) with 'off' (away), yielding the sense of pushing something away or keeping it at bay. This verb + particle composition is a regular, compositional pattern in English and is likely inferable by a B1 learner who knows both constituents.

Etymology

The phrasal verb fight off comes from the image of using fight to send something off, for example soldiers pushing attackers away or a person trying to push away sleep or a cold. So, fight off now means 'to push away or resist' an attack, illness, or an unwanted feeling.