All these things indicate 'giving' - helping the needy.
Give and grow.
Zakaat = The Just Economic Order where everyone works according to his capacity and is compensated according to his needs. People spend on others or give to the Central Authority (Islamic government) whatever is surplus (2:219). And they spend on others whenever they earn income (6:141). The 2.5 percent annual charity is a non-Qur’anic concept that trivializes the comprehensive Qur’anic System of Zakaat. The Islamic government is the trustee of all natural resources and sets up the System of Zakaat. It gives Zakaat ensuring that all needs of the individuals and the state are taken care of adequately and equitably. [22:41]
Sadaqaat = Charity or alms is meant for the interim period when the Divinely Prescribed System of Life is not yet in place.