Hide and Seek summary and related information.

Cryptography is the study of message secrecy.

Landmine summary and related information.

Door of a cupboard

Steganography is the art and science of writing hidden messages in such a way that no one apart from the intended recipient knows of the existence of the message; this is in contrast to cryptography, where the existence of the message itself is not disguised, but the content is obscured.

Invisibility is the state of an object which cannot be seen. An object in this state is said to be invisible (literally, "not visible"). The term is usually used as a fantasy/science fiction term, where objects are literally made unseeable by magical or...

Information hiding is the hiding of design decisions in a computer program that are most likely to change.

Smuggling, also known as trafficking, is the sneaking of goods or persons past a point where prohibited, such as out of a building, into a prison, or across an international border, in violation of the law or other rules. There are various motivations...

Hidden surface determination is the process used to determine which surfaces and parts of surfaces are not visible from a certain viewpoint.

Cover-up (concealing evidence)

Hiding Out, a 1987 movie starring Jon Cryer.

Concealment device

A stowaway is a person who travels illegally, by aircraft, bus, ship or train. Stowaways face dangerous situations. Since they are not legally on board, they must sometimes spend days without water or food when travelling by ship, risking death. An...

WALL is a radio station licenced to Middletown, New York that serves Orange County, New York. WALL is owned by Cumulus Media and broadcasts in 1340 kHz with 1 kilowatt daytime and nighttime, both nondirectional. It is one of the few Radio Disney...

Hide and seek

Concealing birth

Window covering

Concealment or hiding is obscuring something from view or rendering it inconspicuous, the opposite of exposure. A military term is CCD: camouflage, concealment and deception (looks the same as the surroundings, can not be seen, looks like something else, respectively); in a wider sense the other two are also forms of hiding.

The objective of hiding is often to keep the presence of an object or person secret, but in other cases not the presence is a secret, but only the location. More generally an object may be hidden from view, either purposely, or as a side effect; in this case the presence of the object is not necessarily a secret. Examples:

Clothing hiding the skin or body shape from view; see also modesty

Many organisms have evolved various forms of concealment. See the articles crypsis, camouflage and mimicry.

In the genre of military tactics, the term refers to any object, vegetation, terrain feature, or phenomenon (i.e., night, smoke, fog) that prevents a combatant (or unit of combatants) from being seen by the enemy. In differentiation from the similar concept of cover, concealment cannot protect against actual projectiles.

A Figure in Hiding, Volume 16 in the original Hardy Boys book series.