Acknowledge ak-nol'-ej (gignosko): To declare that one recognizes the claims of a person or thing fully established. Both in Old Testament and New Testament expressed by various forms of the word "know" (Proverbs 3:6, Isaiah 61:9, Colossians 2:2 the King James Version). The Psalmist (Psalms 32:5) "acknowledged" his sin, when he told God that he knew the guilt of what he had done. The Corinthians (2 Corinthians 1:14) "acknowledged" Paul and his companions when they formally recognized their claims and authority.