n.: make sure/certain, reliable, in all verity, I (can) tell yon (=let me tell you), ByGeorge, without fault, sure enough, for a cert, and all, truth, surety, sureness, solidity, reliability, positivity, inerrability, certitude, assuredness
v.: emphatically
adj.: real, positive quality or quantity, true
adv.: so, definitely, certainly, really, even, indeed, plunk, undoubtedly
affirm, acceptance, aver, clearly and forcefully as the truth, strong statement claiming the truth of sth (, certainty, consequentialness, be positive about [of], approve, suspicion, exceedingly, Definitely anytime, certainly, must face to face be [jump] over the moon, so, so, according to one's conscience, artlessness, really, really, Absolutely, correctly, Scholasticism land, accurately, worthily, grimly, adequate, hurrah, vitally, actually, really, really, equally, nicely, of or based on a hypothesis valid, in justice, am, certainly zhengliang, positive sure, aplomb