1) that which has not only the name and resemblance, but the real nature corresponding to the name, in every respect corresponding to the idea signified by the name, real, true genuine
1a) opposite to what is fictitious, counterfeit, imaginary, simulated or pretended
1b) it contrasts realities with their semblances
1c) opposite to what is imperfect defective, frail, uncertain
2) true, veracious, sincere