least
The Italian equivalent to the English word 'least' is 'minimo'. It is used in the same context where you want to describe something as the smallest in amount, extent, or significance. For example, in the sentence 'He paid the least amount for the ticket', the Italian translation would be 'Ha pagato il minimo importo per il biglietto'.
Your minimum contribution is appreciated.
This is a phrase that can be used in a situation where someone is expressing gratitude for even the smallest degree of help or involvement in a certain task or project.
This is the least I can do.
This phrase is generally used when someone wants to show humility and express that what they are doing for someone else is not a big deal or is the very least they could do.
The least that can be said is that it's interesting.
This phrase is used when someone wants to give the lowest or most conservative compliment about something or someone, in this case, by stating that it or they are 'interesting'.