Supplication is when you ask God for something that you need and prayers is when you pray for everybody in need.
There are different forms of prayers in the Christian religion. Some of the common ones include adoration, supplication, confession and thanksgiving among others.
Supplication (see Philippians 4)
There are no perfect rhymes for the word supplication.
In Iraq prayers are called by the athann which is the call to prayer from the mosque from the imann ,the man who leads prayers.
supplication = הפצרה (hahf-tsah-RAH). It means supplication.
praise or supplication
A prayer of supplication is a humble beseeching prayer request; as in 1 Timothy 2.1: I exhort therefore, that, first of all, supplications, prayers, intercessions, and giving of thanks, be made for all men;
they are "series of prayers to god"
the man who leads prayers is called 'Imam' that person can be randomly picked out of a crowd who knows the prayers word
A humble and earnest prayer is often referred to as a supplication. It is a heartfelt request made to a higher power in a spirit of humility and sincerity.
I believe they are called a rosary.