array

"In math class, we learned that multiplication is a quick way to add the same number many times. "

"The scientist used a microarray to analyze the gene activity in the cancer cells. "

"The asteroid belt consists of a collection of dust, rubble, and minor planets."

"The arrangement of chairs in the classroom made it easier for the students to see the teacher. "

"My sister is very helpful, especially when it comes to organizing things. "

"The Christmas tree's ornamentation made it look very festive. "

"The scouts reported on the disposition of the enemy troops."

"Can you demonstrate the new tools for us?"

"The library organized the books on the shelves in alphabetical order. "

"The judge impanelled the jury from a pool of registered voters in the county. "

"The birds had built an amazing structure out of sticks and various discarded items."

"the performance of an undertaking or a duty"