lubricates

"He wore a gold chain around the neck."

"After a long day, I feel much easier when I finally sit down and relax. "

"To minimize noise from the street, we closed all the windows. "

"The intricate making of the model airplane showcased the student's skill. "

"The friction between the pencil and paper allows us to write. "

"A piano usually has two or three pedals."

"The bike chain was squeaking loudly, so I applied lubricant to it to make it run smoothly. "

"My son rode his bicycle to school this morning. "

"The smooth transition between classes made it easy to get to my next lesson. "

"to apply cream to a rash"

"My brother normally gets up early for school. "

"Oily substances render things slippery."