To hide; withdraw, remove, or shield from observation; cover or keep from sight; secrete: as, a party of men concealed themselves behind a wall; his face was concealed by a mask.To keep close or secret; forbear to disclose or divulge; withhold from utterance or declaration: as, to conceal one's thoughts or opinions.Synonyms Conceal, Hide, Secrete, screen, cover, cloak, disguise, dissemble. To conceal and to hide may be to put or keep out of sight, literally or figuratively; to secrete is to put out of sight literally. Conceal implies least of action, and hide less than secrete. Conceal and hide may be used by a sort of personification where secrete could not be employed: as, a cave concealed by bushes; a cottage hidden amid woods. See dissemble.