Overview While rereading technical and popular publications on linguistics – this time closely – I realized that loose usage of terms language and speech, consciousness, thinking, thought, semantics, meaning, etc. causes misunderstanding; writing a book titled What is language? might be a good idea. For now it is just a blog. Language and speech “To speak clearly and accurately we need a precise and well-defined language” [Aho1972::1]. Let us start with defining the terms la