A carpenter is a person who makes things out of wood, like chairs.


A carpenter uses both nails and screws. Nails are used with hammers.


 Screws are used with screwdrivers. Nail and screw are also used in these

 expressions.


Screw up: to make a mistake; to do something incorrectly. 

“I don't know what I did, but I somehow screwed up the computer.”

Nail something: to make or do something in a perfect or impressive way

“I was worried about the job interview but it went better than I expected. I think I
 nailed it.”

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