smooth

"The marketing campaign sophisticated the image of the product, making it seem more exclusive than it really was. "

"The instructions for the science project were straightforward; they clearly explained each step. "

"Instruction will be provided on how to handle difficult customers."

"The hammer left several small indentations on the soft wood. "

"What is the pronunciation of "hiccough"?"

"The fallen tree caused a major obstruction in the road, blocking traffic. "

"The artist felt truly free and unconstrained when painting outdoors. "

"Be aware of interactions between different medications."

"If you don't study for the test, the consequences will be a bad grade. "

"The teacher complicated the math problem by adding several extra steps. "

"a falling body moves toward the earth with an acceleration of velocity"

"the performance of an undertaking or a duty"