Gohonzon (ご本尊 or 御本尊) is the general term to denote an object of devotion in many forms of Japanese Buddhism. In Japanese, go is an honorific prefix indicating respect and honzon means object of fundamental respect, veneration, or devotion. Generically used, gohonzon can refer to any such object of devotion, whether a statue or set of statues, a painted scroll of some sort, or some other object; or the word—then usually capitalized when romanized—may be used specifically to refer to the moji-mandala (文字曼荼羅 "script," or "written with characters" mandala) that is the object of veneration in various Nichiren schools.
In private settings, gohonzons are enshrined in an altar called a butsudan (佛壇 or 仏壇, "Buddha platform") that is considered the "home of the Buddha" by Buddhists.
Read more about Gohonzon: Moji-mandala of Nichiren Schools, The Object of Devotion Before The Gohonzon, The Essence of The Gohonzon, What Constitutes A Gohonzon?, Other Views, Buddha Statue and Gohonzon As Objects of Devotion, Handling and Treatment of The Gohonzon