- The definition of confirm is to approve or to establish the truth or make stronger.
- An example of confirm is to sign an alliance agreement.
- An example of confirm is to call a friend and make sure that tonight's plans are definite.
- An example of confirm is to pledge devotion to a faith.
confirm definition by Webster's New World
- to make firm; strengthen; establish; encourage
- to make valid by formal approval; ratify
- to prove the truth, validity, or authenticity of; verify
- to cause to undergo the religious ceremony of confirmation
Origin: Middle English confermen ; from Old French confermer ; from Classical Latin confirmare ; from com-, intensive plush firmare, to strengthen ; from firmus, firm
- confirmable adjective
confirm definition by American Heritage Dictionary
transitive verb con·firmed, con·firm·ing, con·firms
- To support or establish the certainty or validity of; verify.
- To make firmer; strengthen: Working on the campaign confirmed her intention to go into politics.
- To make valid or binding by a formal or legal act; ratify.
- To administer the religious rite of confirmation to.
Origin: Middle English confirmen, from Old French confermer, from Latin cōnfirmāre : com-, intensive pref.; see com- + firmāre, to strengthen (from firmus, strong; see dher- in Indo-European roots).
- con·firmˌa·bilˈi·ty noun
- con·firmˈa·ble adjective
- con·firmˈa·toˌry adjective
- con·firmˈer noun