conceal

Conceal is a verb meaning to prevent something from being seen or discovered, to hide, or to withhold information. The noun concealment refers to the act or state of hiding or secrecy. Concealment commonly implies deliberate effort to keep something out of sight or knowledge, sometimes to protect privacy, avoid harm, or evade detection.

The word derives from Middle English concealen, from Old French conceeler, based on Latin celāre, meaning “to hide.” The modern form appeared by the late medieval period and has retained a broad range of senses.

In everyday use, concealment can apply to physical objects or to intangible matters. People may conceal a personal item, conceal their whereabouts, or conceal emotions or intentions through behavior or expression. In information contexts, to conceal can mean withholding facts or truth, whether for privacy, strategy, or deception.

In legal settings, concealment has specific meaning as well. Concealment of crime, assets, or evidence can be charged as an offense or an aggravating factor in some jurisdictions, reflecting a component of obstructing justice or fraud. Penalties vary by jurisdiction and context.

In other domains, concealment is a tactical concept in military, law enforcement, or wildlife contexts, referring to actions or technologies that reduce visibility, such as camouflage, cover, or stealth. Related terms include concealment versus disclosure, and concealment versus revelation.