PHONEME
It means the smallest meaningful unit of sound .The minimum unit of sounds which can make a difference in meaning is called phoneme.
One phoneme stands for an only one sound of a language. To be phoneme a sound must be functionally different from all other sounds of the language.
E.g.
Pen: / pen /
Pin: / pin /
PHONATICS
It is the study of human speech sounds, how they are produced, how they are transmitted and how they are heard. Study of phonetics crosses language barriers since in concerned with all speech sounds and not just of that one particular language.
PHONOLOGY
It is the broader study of major speech sounds and their organization in the particular language. Phonology in the present situation deals with how English organizes its elements of speech into an integrated system.
