mock-up - maketa, model, vizuální návrh, grafický návrh
BrE
/'mɒkʌp/
AmE
/'mɑ:kʌp/

noun - a full-size or scaled model of a design used to show, test, or evaluate how something will look or work before it is made

 
mock - nanečisto, jen jako
BrE
/'mɒk/
AmE
/'mɑ:k/

adjective - looking like the real thing while it is only an imitation (usually something that is done for practice, such as an exam, a test etc.)