Simplify the following text for a Grade 5 native English-speaking person.
Original: A word search , word find , word seek , word sleuth or mystery word puzzle is a word game that is letters of a word in a grid , that usually has a rectangular or square shape . The objective of this puzzle is to find and mark all the words hidden inside the box .
Simplified: A word search puzzle is a word game that uses words and puts them in a grid .