1. To place something flat:
* The carpenter laid down the planks of wood to create a floor.
* She laid down her book and closed her eyes.
* The soldiers laid down their weapons and surrendered.
2. To establish a rule or principle:
* The government laid down strict new regulations for food safety.
* The company laid down a code of conduct for all employees.
* The constitution lays down the fundamental rights of citizens.
3. To rest or relax:
* After a long day, he laid down on the couch and fell asleep.
* The dog laid down in the shade and took a nap.
* She laid down her head on the pillow and drifted off to sleep.
4. To stop working or fighting:
* The enemy laid down their arms and retreated.
* The workers laid down their tools and went on strike.
* The team laid down their bats and celebrated their victory.
5. To deposit something in a specific place:
* He laid down a deposit on a new car.
* She laid down a payment on her mortgage.
* The company laid down a large sum of money to invest in research.
Remember that "laid down" is the past tense of "lay down." The present tense is "lay down," and the future tense is "will lay down."
Here are some examples of how to use "laid down" in a sentence:
* The architect laid down the plans for the new building.
* The company laid down strict rules about using company property.
* After the long hike, she laid down on the grass and enjoyed the view.
* The soldiers laid down their arms and surrendered to the enemy.
* He laid down a deposit on the house he wanted to buy.