The definition of a loan is the agreement of lending money with interest and a plan to repay it.
An example of a loan is the agreement to give you money to buy a house.
To loan is defined as to give someone money that will be repaid with interest or an object that will be returned.
An example of to loan is to give your friend money when they don’t have any cash.
An example of to loan is to give someone your phone to make a quick call.
loan definition by Webster's New World
the act of lending, esp. to use for a short time: the loan of a pen
something lent; esp., a sum of money lent, often for a specified period and repayable with interest
Origin: Middle English lone ; from Old Norse lān (akin to Old English læn, lending, loan, lænan, to lend) ; from Indo-European base an unverified form leikw-, to leave behind from source Classical Latin linquere, Classical Greek leipen, Sanskrit riṅákti, (he) leaves
An act of lending; a grant for temporary use: asked for the loan of a garden hose.
A temporary transfer to a duty or place away from a regular job: an efficiency expert on loan from the main office.
transitive verbloaned, loan·ing, loansUsage Problem
Origin: Middle English lan, lon, from Old Norse lān; see leikw- in Indo-European roots.
Usage Note: The verb loan is well established in American usage and cannot be considered incorrect. The frequent objections to the form by American grammarians may have originated from a provincial deference to British critics, who long ago labeled the usage a typical Americanism. Loan is, however, used to describe only physical transactions, as of money or goods; for figurative transactions, lend is correct: Distance lends enchantment. The allusions lend the work a classical tone.
A temporary transfer of money or some other asset by a lender to a borrower with a promise of repayment or return to the lender on a specific date. Most loans include a requirement of payment for use of the money or borrowed asset.