attest

As verbs the difference between protest and attest

is that protest is to make a strong objection while attest is to affirm to be correct, true, or genuine.

As a noun protest

is a formal objection, especially one by a group.

As verbs the difference between certificate and attest

is that certificate is to supply with a certificate, especially following certification while attest is to affirm to be correct, true, or genuine.

As a noun certificate

is a document containing a certified statement.

As a verb attest

is to affirm to be correct, true, or genuine.

As a noun approval is

an expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing or event meets requirements.

As verbs the difference between aver and attest

is that aver is to assert the truth of, to affirm with confidence; to declare in a positive manner while attest is to affirm to be correct, true, or genuine.

As a noun aver

is possessions, property, belongings, wealth.

As verbs the difference between attest and vindicate

is that attest is to affirm to be correct, true, or genuine while vindicate is to clear from an accusation, suspicion or criticism.

As verbs the difference between attest and ratify

is that attest is to affirm to be correct, true, or genuine while ratify is to give formal consent to; make officially valid.

As verbs the difference between attest and notarize

is that attest is to affirm to be correct, true, or genuine while notarize is to be witness of the authenticity of a document and its accompanying signatures in one's capacity as notary public.

As a noun acknowledgement

is the act of acknowledging; admission; avowal; owning; confession.

As a verb attest is

to affirm to be correct, true, or genuine.

As verbs the difference between attest and proven

is that attest is to affirm to be correct, true, or genuine while proven is past participle of lang=en.

As an adjective proven is

having been proved; having proved its value or truth.

As verbs the difference between attest and demonstrate

is that attest is to affirm to be correct, true, or genuine while demonstrate is to display the method of using an object.