testify

verb tes·ti·fy \ ˈtes-tə-ˌfī \
Updated on: 18 Nov 2017

Definition of testify

testified; testifying
intransitive verb
1 :to make a solemn declaration under oath for the purpose of establishing a fact (as in a court)
2 a :to make a statement based on personal knowledge or belief :bear witness
b :to serve as evidence or proof
3 :to express a personal conviction
transitive verb
1 a :to bear witness to :attest
b :to serve as evidence of :prove
2 :to declare under oath before a tribunal or officially constituted public body
3 archaic
a :to make known (a personal conviction)
b :to give evidence of :show

testifier

play \-ˌfī(-ə)r\ noun

Examples of testify in a Sentence

  1. She refused to testify about who had given her the information.

  2. She testified before Congress today.

  3. He agreed to testify against his drug dealer.

  4. He testified that he'd seen two people leave the building on the night of the murder.

  5. These statistics testify that the program is working.

  6. Several people testified during the revival meeting.

Recent Examples of testify from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'testify.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of testify

Middle English testifien, from Anglo-French testifier, from Latin testificari, from testis witness

testify Synonyms

Synonyms
attest, depose, swear, witness, bear witness
Related Words
verify; vouch; promise, vow


TESTIFY Defined for English Language Learners

testify

verb

Definition of testify for English Language Learners

  • : to talk and answer questions about something especially in a court of law while formally promising that what you are saying is true

  • : to talk about or say (something) in an honest and confident way

  • : to show that something is true or real : to give proof of something


TESTIFY Defined for Kids

testify

verb tes·ti·fy \ ˈte-stə-ˌfī \

Definition of testify for Students

testified; testifying
:to make a formal statement of something sworn to be true
  • Two witnesses testified in court.

Law Dictionary

testify

verb tes·ti·fy \ ˈtes-tə-ˌfī \

legal Definition of testify

testified; testifying
intransitive verb
:to make a solemn declaration under oath or affirmation for the purpose of establishing a fact :give testimony
transitive verb
:to declare in testimony

testifier

noun

Origin and Etymology of testify

Latin testificari, from testis witness



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