* Noun: This is the most common usage. It refers to the act of lending money or the money that is lent.
* Verb: This is less common, but it means to give something temporarily. For example, "I will loan you my car."
* Adjective: This is even less common and means "given as a loan." For example, "a loan agreement."
Here are some examples:
* Noun: "She took out a loan to buy a house."
* Verb: "I will loan you my book for the weekend."
* Adjective: "The company offered a loan program to its employees."
The context of the sentence will usually determine the part of speech.