This document discusses componential analysis, a process for breaking down the meaning of words into minimal components. It provides examples analyzing the words "man", "woman", "boy", and "girl" based on the components of "+HUMAN", "+ADULT", and "-MALE". There are also discussions of different types of meaning relations between words like synonyms and antonyms, as well as a notation system called "Signese" to represent word meanings unambiguously. The document concludes by justifying componential analysis and discussing different types of oppositions in meaning.