polite

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

"The instructor explained the new math concept clearly to the students. "

"He polished up the chrome until it gleamed."

"He is a student of life."

"A good silver polish will remove tarnish easily."

"The alchemists sought to transform lead into gold."

"Knowing the proper etiquette for a job interview, like making eye contact and shaking hands firmly, can increase your chances of getting hired. "

"His upbringing had led him to act in an overly mannered way."

"The wealthy benefactor hoped to civilize the remote tribe by building a school and teaching them Western customs. "

"The smooth surface of the kitchen table was perfect for setting the dinner plates. "

"In pottery, a stone is sometimes used to burnish a pot before firing, giving it a smooth, shiny look."

"The dog has strange manners of eating its food, sometimes using its paws. "