Synonyms for Discovered:

adj.

found (adjective)
revealed, unveiled, disclosed, spotted, happened upon, well-known, Shown, observed, Explored, invented, real, Espied, exposed, Disinterred, identified, learned, Originated, recognized, sighted, opened, unlocked, detected, perceived, famous, ascertained, presented, searched out, Unearthed.
observed (adjective)
observed.

n.

discovered (noun)
determined, unconcealed, disclosed, revealed, ascertained, observed.
found (noun)
sighted, laid bare, happened upon, invented, stumbled upon, searched out, well-known, Explored, perceived, made out, opened, traced, famous, Descried, presented, met with, brought to light, real, Shown, empirical, unlocked, Originated, Espied.

v.

discovered (verb)
detected, recognized, Unearthed, Disinterred, solved, Educed, found, Fathomed, identified, elicited, unmasked, dug up, unraveled, determined.
learned (verb)
digested, understood, absorbed, grasped, comprehended, learned, read, Assimilated, Gleaned, realized, mastered, studied.
located (verb)
placed, positioned, located, situated, set, spotted, posted, pinpointed, Stationed, put, established.
uncovered (verb)
disclosed, unveiled, unsheathed, uncovered, unwrapped, bared, exposed, revealed.

Other synonyms:

Other relevant words:
observed, made out, invented, traced, sighted, unconcealed, opened, met with, Descried, perceived, ascertained.

Usage examples for discovered

  1. But when it shall be discovered my poor fellow, will you not get yourself into trouble? – Cruel As The Grave by Mrs. Emma D. E. N. Southworth
  2. Cecil, if we had been discovered – Molly Bawn by Margaret Wolfe Hamilton
  3. Try not to let your daughter know anything about this, and say nothing to her; but I know that even if she discovered she would not give us away. – The Idol of Paris by Sarah Bernhardt