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to swear

to swear

4.6
To make a serious promise, often in court
  • verb
  • /swɛr/
  • Formal
translation icon : prestar juramento
  • I will pay this bill in its entirety, and I swear, I swear, K. will never happen again.
  • swear an oath
  • sworn testimony
  • swear allegiance

It sounds weird, but I swear this thing is magic.

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Examples

  • And it says, I solemnly swear that I'm up to no good.

  • I'm coming in to swear out a warrant against you.

  • So I am here to solemnly swear to do them next week.

  • Look, tell Ms. Maloney, I swear I'll get her money to her by the end of the week.

  • Before giving his testimony, he had to swear an oath in court to tell the truth.

  • As part of the ceremony, the new president will swear to uphold the constitution.

  • She took a deep breath and prepared to swear her commitment to the organization.

Synonyms

to testify
vsto swear
  • Formal
945 5.6

To say officially in court what you saw or know

is broader applying to solemn promises beyond court declarations
to assert
vsto swear
229 3.9

To clearly and firmly say your needs or opinions

is more solemn and may involve a formal oath or public promise
to pledge
vsto swear
  • Formal
166 4.1

To promise seriously or give something as a guarantee

is used for solemn promises but also covers declarations made under oath
to affirm
vsto swear
108 4.1

To state clearly that something is true or show support for it

is more solemn and often involves an oath or formal promise
to depose
vsto swear
  • Formal
26 8.0

To give a formal statement while promising to tell the truth

is broader including solemn promises and statements outside courtroom testimony
to avow
vsto swear
  • Formal
4 7.6

To say something openly, often in a formal way

is similar but usually used for promises or declarations made under oath not admissions
to aver
vsto swear
  • Formal
2 7.9

To say firmly that something is true

is more formal and solemn often including an oath or legal context
to covenant
vsto swear
  • Formal
1 8.1

To make a formal written promise with another person or group

is a solemn promise or statement often made personally not as a mutual agreement
to depone
vsto swear
  • Formal
1 9.9

To give a formal statement under oath, often in writing

is mainly for spoken or public oaths while this focuses on written testimony
to swear blind
vsto swear
  • UK
1 8.4

Say very firmly that something is true, even if others doubt it

is formal and solemn often involving an oath rather than mere strong insistence

Idioms

to say you swear
  • Informal
8.5

Ask someone to promise they are telling the truth or will keep a secret

Phrasal Verbs

to swear in
  • Formal
53 4.2

To give someone a formal promise before they start an official job

18 4.4

To strongly believe something is very good or useful

10 4.9

Make a serious promise to stop doing something you do regularly

to swear at
  • Offensive
7 6.5

Say rude words to someone when angry

to swear out
  • Jargon
3 8.4

To tell a court that someone did something wrong so it gives a warrant

1 8.4

Say very firmly that something is true, even if others doubt it

How Solemn

vow
  • Formal
279 3.4
oath
  • Formal
385 3.6
to swear
  • Formal
4.6
to pledge
  • Formal
166 4.1
promise
1.0

Surface Forms

swear infinitive
swearing present participle
swears third person singular
swore past
sworn past participle

Etymology

The word swear comes from an old English verb swerian that meant 'to promise' or 'to take an oath'. So to swear today is to make a serious, formal promise, like when someone promises to tell the truth.