Basic units of language and speech

Distinction between language and speech was first introduced by Ferdinand de Saussure. Language – is a system of units used in the process of speaking by all members of a community. Speech – is the process of using articulate (distinctly uttered) sounds to convey information. In the process of language we use many units to code the information we are going to convey, therefore any instance of speech is a particular realization of a language.
The basic units of language and speech are: