As a noun:
* The truck had a heavy load of bricks. (Meaning: a quantity of something being transported)
* The server was under a heavy load, causing it to crash. (Meaning: a demand placed on a system or resource)
* He carried the load of his family's expectations. (Meaning: a responsibility or burden)
As a verb:
* She loaded the dishwasher with dirty dishes. (Meaning: to put something into something else)
* The company loaded the cargo onto the ship. (Meaning: to put something on a vehicle or vessel)
* The software automatically loads the data into the database. (Meaning: to bring data into memory or a program)
* The batter loaded up and swung at the ball. (Meaning: to prepare to do something, often forcefully)
As an adjective:
* The load was too heavy for the small car. (Meaning: large or difficult to carry)
* He gave a load speech that went on for hours. (Meaning: long or excessive)
As a phrase:
* The car can handle a load of up to 1,000 pounds. (Meaning: the maximum weight that can be carried)
* He was under a lot of load to finish the project on time. (Meaning: a great deal of pressure or stress)
These are just a few examples. The best way to use "load" in a sentence is to consider the context and choose the meaning that fits best.