What does an offer or a proposal mean as per the law‪?‬ Offer or Proposal

So there is definitely meanings of so many terms that the constitutional law of country defines and out of those is the meaning and definition of An Offer or a Proposal.
Learn to define and understand these terms on the go.
You could be a student who is dealing with this subject, or a person looking to explain this to some other, or my friend whom I am sharing as an undue obligation.
Have fun going through this.