Русско-англо-русский юридический словарь

An acceptance is one person's compliance with the terms of an offer made by another person or it is the unconditional consent to the terms of the offer. To make a binding contract the acceptance must exactly match the offer. The offeree must accept all the terms of the offer. However, in certain cases it is possible to have a binding contract without a matching offer and acceptance. (lawteacher.net)

For the purposes of sections 11 and 12 (transitional provisions: implication of covenants in old form in certain cases and new form in others) as they apply in relation to a disposition of property in accordance with an option granted before the commencement of this Part and exercised after commencement, the contract for the disposition shall be deemed to have been entered into on the grant of the option. (legislation.gov.uk)