Offer

Offer is, in effect, a promise by the offeror to do or abstain from doing something, provided that the offeree will accept that offer and pay or promise to pay the 'price' of the offer. The price, of course, need be a monetary one. In fact, in bilateral contracts, the mere promise of payment of the price suffices to conclude the contract, while in a unilateral contract it is the actual payment of the price which is required, An Introduction to the Law of Contract. P.S. Atiyah, 44 (3rd Edn., 1981).