n.: feel ... in one's bones that, confident, lack of doubt, feeling of certainty, definite news, be sure (certain), firmly believe, be sure of, stand firmly on, bet [put] one's shirt [boots] on [upon], be positive about [of], bet one's life, firm belief, be convinced, be convinced of, be certain of, feel in one's bones, feel ... in one's bones, assurance, satisfaction, positivity, certitude, assuredness
v.: be sure, be sure, or confidently expect, that sth will happen, know
adj.: positive in one's mind, completely sure, sure