The mosque is a place of worship for followers of Islam. Muslims often refer to the mosque by its Arabic name, masjid. The word "mosque" in English refers to all types of buildings dedicated for Islamic worship, although there is a distinction in Arabic between the smaller, privately owned mosque and the larger, "collective" mosque (masjid jami), which has more community and social amenities.

The mosque serves as a place where Muslims can come together for salat (prayer) as well as a center for information, education, and dispute settlement. The Imam leads the prayer.

They have developed significantly from the open-air spaces that were the Quba Mosque and Al-Masjid al-Nabawi in the 7th century. Many mosques have elaborate domes, minarets, and prayer halls. Mosques originated on the Arabian Peninsula, but are now found in all inhabited continents.

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