1 Halftone â the use of black and white in a pattern that is perceived as shades of grey (may be extended also to color images) 2  Polychrome â of multiple colors, the opposite of monochrome. 3  Monochromacy (color blindness)  Selective color â use of monochrome and color selectively within an image.
Aside from Arabic, the Semitic language family includes Hebrew, Aramaic, Maltese, Amharic, Tigrinya, Tigre, Gurage, Geez, Syrica, Akkadian, Phonoecian, Punic, Ugaritic, Nabatean, Amorite and Moabite.
Arabic dictionaries were compiled between the 8th and 14th centuries CE, organizing words in rhyme order (by the last syllable), by alphabetical order of the radicals, or according to the alphabetical order of the first letter (the system used in modern European language dictionaries).