Kadosh means Holy, in Hebrew. It is also the expression used to designate the name of god of jews. Kadosh it also means something sacred, or an individual who has been consecrated before other people. Kadosh also appears in the Bible, in the New Testament.
There are many variations of Kadosh, Kadesh means sacred in Hebrew, Kiddush means sanctification, or consecration, already yom kadosh means holy day, Kaddish it means sanctification, and a prayer is offered for 11 months to exalt the name of God. Kaddish is a liturgical prayer of Aramaic origin that praises God and prays for the coming of the Messianic kingdom. This prayer is characteristic of children at their parents' funeral and during the year of mourning.
Kadosh appears in the Old and New Testaments of the Bible and Torah, always in prayer to exalt God.
Kadosh is also used in Freemasonry, it is an initiation ceremony and the person who participates is named Knight Kadosh. This nomenclature is used especially in the United States and Canada.
See also the meaning of Yeshua.