(slang, US, Philippines) A xerox; a photocopy. / (slang, Philippines) something exactly the same as something else

(advertising) A method of market research that predicts in-market performance of an advertisement before it airs.

(informal, derogatory) One who imitates or plagiarizes others' work.

Imitative; unoriginal.

To act as a copycat; to copy in a shameless or derivative way

A copper plate, either etched or engraved, to make a recessed pattern. / A print made from such a plate. / A style of handwriting based on that used on such prints; English round hand.

To engrave on and print from a copperplate.

(marketing, advertising) A person who writes advertising copy (the text used in advertisements).

Alternative spelling of copper sulfate

(chemistry) the common name for copper(II) sulfate, CuSO₄, which forms blue crystals and is used in agriculture, dyeing, electroplating and many other applications; reducing agents reduce it to the red cuprous sulfate