A more thorough explanation:

Definition: To allow someone to use something temporarily, usually in exchange for compensation, with the condition that it will be returned. It can also mean to provide money temporarily with the expectation of repayment, often with interest.

• I will lend you my car for the weekend, but please return it with a full tank of gas.
• The bank agreed to lend me $10,000 to start my business, but I will have to pay it back with interest.

In the first example, someone is allowing another person to use their car temporarily, with the expectation that it will be returned. This is an example of lending something. In the second example, the bank is providing money temporarily, with the expectation that it will be paid back with interest. This is an example of lending money.