Alphabet-a letter or symbol in a fixed order , used to represent the basic sound of a language in a particular,the set of letters A to Z  

Street Sign-a sign usually on the side of the street or highway 

Advertisement-a notice or announcement in a public medium promoting a product

Constellation-a group of stars forming recognizable patterns that is traditionally named after its apparent form or identified with a mythological  figure

Ascll symbols- American standard code for information interchange is the most common format for text files in computers and on the internet 

Electronic Symbols- is a pictogram used to represent various electronic and electro devices 

Morse Code-an alphabet or code in which letters are represented by combinations 

American sign language - a form of sign language developed in the US and used

also in english and canada

Glyph-a pictograph