Verb

Infinitive to conceal

Third person singular conceals

Simple past concealed

Past participle concealed

Present participle concealing

to conceal (third-person singular simple present conceals, present participle concealing, simple past and past participle concealed)

1. (transitive) To hide something from view or from public knowledge, to try to keep something secret.

   He tried to conceal the truth about his health.

Related terms

• concealing, concealed

Synonyms

• hide
• obfuscate
• secrete

Antonyms

• reveal
• uncover
• admit

Concealment (also called abscondence or hiding) is obscuring something from view or rendering it inconspicuous, the opposite of exposure. A military term is CCD: camouflage (object looks like its surroundings), concealment (object cannot be seen), and deception (object looks like something else); in a broad sense, all three are forms of concealment.

In nature

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

Military tactics

• 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.

Computer science and programming

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

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