What is Signo:
A sign is known as the material object or phenomenon that, naturally or conventionally, represents and replaces another object or sign.
Also, it can be the gesture made with some part of the body to express or indicate something. For example: the deaf-mutes, or he made me a sign to know where the exit was.
On the other hand, in mathematics, the sign makes it possible to identify the nature of the quantities and the operations to be carried out with them. For example: plus or minus signs, multiplication sign, greater or less than sign, infinity sign, among others.
Finally, the linguistic signs are the minimum unit of the sentence constituted by a meaning, which is the concept, and a signifier, which is the acoustic image. For example: when describing a computer, all its characteristics are identified, while the individual forms the image in his brain.
The punctuation of written texts gives the reader clues about intonation and speech pauses. The correct interpretation of written messages depends largely on it, as it is of great help to resolve ambiguities of meaning or the intentionality that the individual prints to the messages, which in speech is resolved through intonation.
There are different types of punctuation marks, each of which has its functions such as: period, comma, colon, semicolon, ellipsis, question mark and exclamation point.
Sign in medicine
In medicine, clinical signs are the different objective or visible manifestations as a consequence of a disease or alteration in the individual's state of health. The signs allow the health professional to make a diagnosis, and thus apply the appropriate treatment.
In relation to the above, there are two types of signs: positive and negative sign. In the first, the manifestation of the sign is essential to diagnose a disease, in contrast, the second the absence of the sign is significant for medical analysis.
Sign in music
In music, musical signs are any of the characters with which music is written. They are used in scores to guide the musician in the interpretation of a musical composition.
Some of the signs are: the notes (do, re, mi, fa, sol, la, si); the keys (treble clef, bass clef, C clef); the rests, the accidentals, patterns or staves.