The term ‘zakaa’ in Arabic means growth and increase. About the literal meaning of the term, Allama Tabatabai defines it as purification.

There are two types of Zakaa: Zakaa of one’s body which is Zakatul Fitr and is paid on Eid ul Fitr and zakaa of one’s property payable on nine items to be spent for the poor and other social purposes.

These nine items are:
two types of coin (gold and silver), three types of livestock (camel, cow and sheep) and four grains (wheat, barley, dates and raisin). The amount of zakat for each item is different and is discussed in jurisprudence resources.