Definition of Extension
An increase in length of time (e.g. of expiration date of lease, or due date of note).
The word “extension” ordinarily implies the existence of something to be extended. State v. Graves, 352 Mo. 1102, 182 S.W.2d 46, 51.
A part constituting an addition or enlargement, as an annex to a building or an extension to a house. Addition of existing facilities. Enlargement of main body; addition of something smaller than that to which it is attached; to cause to reach or continue as from point to point; to lengthen or prolong. That property of a body by which it occupies a portion of space. Newark Stove Co. v. Gray & Dudley Co., D.C.Tenn., 39 F.Supp. 992, 993.
Bankruptcy. An extension proposal is an agreement on part of creditors that they will extend time within which their claims are probably to be paid, in full as to secured creditors, on terms proposed by debtor and approved by court. Heldstab v. Equitable Life Assur. Soc. of United States, C.C.A.Kan., 91 F.2d 655, 658.
Commercial law. An allowance of additional time for the payment of debts. An agreement between a debtor and his creditors, by which they allow him further time for the payment of his liabilities. A creditor’s indulgence by giving a debtor further time to pay an existing debt.
Lease. The word “extension,” when used in its proper and usual sense in connection with a lease, means prolongation of the previous leasehold distinction between “extension” and "renewal” of lease is chiefly that, in the case of renewal, a new lease is requisite, while, in the case of extension, the same lease continues in force during additional period upon performance of stipulated act. An option for renewed implies giving of new lease on seune terms as old lease, while an option for extension contemplates a continuance of old lease for a further period.
Patents. Extension of life of patent for em additional statutorily allowed period.
Time. Extensions of time in civil actions are governed by Fed.R. Civil P. 6, in criminal actions by Fed.RCrim.P. 45, and in appeals by Fed.R.App.P. 26
That's the definition of Extension in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.