staining

"The manager addressed the accusations of unfair treatment that several employees had made. "

"The student used a microscope to see the tiny cells in the plant leaf. "

"to bring a thing into comparison with another;  there is no comparison between them"

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

"The computer technician fixed the broken printer in the school library. "

"The specific of her success was her dedication to studying. "

"The main character in the school play was a brave student. "

"My sister's reputation for being organized helped her excel in school. "

"The student's essay demonstrated excellence in writing. "

"We supply all microscopic stains and other materials."

"early specimens of the art of Picasso"

"Washing light laundry with dark may cause your clothes to discolor."