To acknowledge openly, boldly, and unashamedly; confess: avow guilt. See Synonyms at acknowledge.
To state positively.
[Middle English avowen, from Old French avouer, from Latin advocāre, to call upon; see advocate.] a·vow'a·ble adj., a·vow'a·bly adv., a·vow'ed·ly (-ĭd-lē) adv., a·vow'er n.
(ə-vou') 