To renounce all claim to; to deny ownership of or responsibility for; to disown; to disavow; to reject.
To make an admission or warning.
To deny, as a claim; to refuse.
(law) To relinquish or deny having a claim; to disavow another's claim; to decline accepting, as an estate, interest, or office.
Often followed by of: to be honest about something; to confess.