Mufrid

A Qarin (Arabic: قارن) is a Hajj pilgrim who is performing Hajj al-Qiran, which involves combining Umrah and Hajj, with only one Niyyah and Ihram for both.

A Mutamatti (Arabic: متمتّـع) is a Hajj pilgrim who is performing Hajj al-Tamattu, where Umrah and Hajj are performed with two separate intentions and two Ihrams. The vast majority of Hajj pilgrims are Mutamattis.