Definition of Semantics

Key issues:
Do you know what is the definition of language?
Do you know what are the language feature?
Do you know what is meaning?

Language:

Linguistics:

Semantics:

Lexical meaning
Lexical meaning is the meaning of a word in isolation. The term 'lexical meaning' is to be interpreted as the meaning of lexemes depends upon the meaning of the sentences in which they occur.
Lexical meaning covers among other things the discussion about
Ambiguity:
Synonymy:
Antonymy:
Hyponymy:
Polysemy:
Homophony:
and homonymy:

Can you define for each term?

Sentential Meaning
A sentence is a set of words expressing a statement, a question, or a command. Sentence can be defined as a group of words that forms a statement, command, exclamation or question, it usually contains a subject and a verb and (in writing begins with a capital letter and ends of the mark (.,!,?) (Procter in Ahmadin, 1998: 12)
Theories in sentential semantic:
1. theory of truth condition:
2. theory of deep structure:

Discourse Meaning/ speech act
Discourse is a term used in linguistics to refer to a continuous stretch of language larger than a sentence. In addition, according to Fromkin in Ahmadin (2002: 22) linguistic knowledge accounts for speaker's ability to combine phonemes into morphemes, morphemes into words and words into sentences. Knowing a language also permits combining sentences together to express complex thought and ideas. This linguistic ability makes language an excellent medium for communication. These larger linguistic units are called discourse.