Alphabet

It is a standard set of letters with basic written symbols, which is used to write one, or more languages based on the general principle that the letters represent basic significant sounds of the spoken language.

Street signs

A street sign is a type of traffic sign used to identify road names, generally those that do not qualify as expressways or highways. Street signs are most often found posted at intersections, and are usually in perpendicularly oriented pairs identifying each of the crossing streets. 

Advertisement

Is a form of marketing communications used to persuade an audience to take or continue some action, usually with respect to a commercial offering, or political or ideological support.

Constellation

In modern astronomy, a constellation is a specific area of the celestial sphere as defined by the International Astronomical Union (IAU). These areas had their origins in star patterns from which the constellations take their names.

Ascii symbols

It is a translation alphabet.

Electronic symbols

An electronic symbol is a pictogram used to represent various electrical and electronic devices (such as wires, batteries, resistors, and transistors) in a schematic diagram of an electrical or electronic circuit. 

Morse code is a skilled listener or observer without special equipment can directly understand a method of transmitting text information as a series of on-off tones, lights, or clicks without specialized equipment.

American sign language

American Sign Language (ASL) is the predominant sign language of deaf communications in the U.S and English-speaking parts of Canada. Besides North America, dialects of ASL and ASL-based creoles are used in many countries around the world, including much of West Africa and parts of Southeast Asia.

Glyph

In typography, a glyph /ˈɡlɪf/ is an elemental symbol within an agreed set of symbols, intended to represent a readable character for the purposes of writing and thereby expressing thoughts, ideas and concpets.