Concealments refer to the act of hiding or keeping something secret or out of sight. Synonyms for concealments include secrecy, cover-up, camouflage, masking, veiling, invisibility, obscurity, and clandestineness. The word secrecy is used to indicate the intentional withholding of information or knowledge; cover-up is used when someone tries to hide a wrongdoing or mistake; camouflage is used to blend in with the environment or surroundings; masking and veiling implies that something is hidden by a physical barrier or covering; invisibility and obscurity indicate that something is not visible or clear enough; and clandestineness is used to describe difficult-to-detect actions or operations that are often considered illegal or improper.