Semantics is a branch linguistic which study the meaning of a language. It relates with the expressions of word, phrase, and sentences.
 Based on etimology, the word semantics originally comes from Greek word semantikos means ‘significant’ ; semainein means ‘to show, signify’ or ‘indicated by sign’; from sema means ‘sign’. There are some definitions semantics from the expert. Such as :
Palmer (1976 : 1) states “Semantics is the technical term used to refer to study of meaning.”
Hornby (1972 : 789) has defined “Semantics is branch of linguistics concerned with studying the meaning of words and sentences.”  
Lyons (1977 : 1) defines “Semantics is generally defined as the study of meaning.”
Siregar (1992 : 2) states “Semantics is the study of the meaning of words, phrases, or sentences in the language or semantics is the study of meaning in language.”
          The scope of semantics is the meaning of language. It is not relate with word form and structure. Every people may have different way to analyze the meaning of a linguistic because there is no very general agreement about the nature of meaning or the way in which it should be described.
             There are at least two major approaches to the way in which meaning in language is studied, each of which is often very influential in determining which fact of meaning are relevant for semantics The first is linguistics approach, it concern with the way in which meaning in a language is structured. The second is philosophical approach, it investigates the relation between linguistics expression, such as the words of language, and person, things, and events in the world to which these words refer.
Leech (1981 : 8-23) has defined seven types of meaning. The seven types of meaning are as follows:
1. Conceptual Meaning is logical, cognitive or denotative content
For examples:
House : a building made for people to live in
Horse : a kind of animal which has four legs, a mane and a tail.
2. Conotative meaning is the communicative value and an expression has by the virtue of what it refers to to over and above its peurely conceptual content. And it includes not only physical characteristic, but also social properties and psychologycal.
For examples:
The word “red” has the conotation of brave and the word “black” has the conotation of magic, evil or fear.
3. Social meaning is a piece of language conveys about the social circumstances of it use. It is connected with the situation in which an utterance is uttered.
For examples:
The word ‘horse, steed and hag’ have the same conceptual meaning but the convey different social circumstances of their use.
Horse (general)
Steed (poetic)
Hag (slang)
 4. Affective meaning is meaning that expresses the personal feelings or attitude of the speakers or the writers.
For example:
I’m very glad to hear your voice, but I wonder if you would be so kind as to lower your voices a little.
5. Reflected meaning is the meaning that arises in case of multiple conceptual meaning when one sense of a word forms part of our response to another sense.
For example:
6. Collocative meaning consists of the association of a word acquires on account of themeanings of words which tend to occur in its environment.
For example:
The word ‘handsome’ and ‘beautiful’ have commom ground in the meaning ‘good looking’. The word ‘handsome’ refers to man and ‘beautiful’ refers to woman.
7. Thematic meaning means what is communicated by the way in which a speaker or writer organizes the message in terms of ordering, focus and emphasis. It is usually applied in the use of acctive and passive forms.
For example:
1. She likes orange juice the most
2. Orange juice she like the most
3. It’s orange juice that she likes the most
            As conclusion sematics is a study about a meaning of word. There are two approaches in finding meaning of a language. Namely, linguistics approach and philosophical approach. There are seven meanings divided by Leech (1981 : 8-23). That are 1.  Conceptual Meaning is logical, cognitive or denotative content. 2. Conotative meaning. 3. Social meaning. 4. Affective meaning. 5. Reflected meaning. 6. Collocative meaning. 7. Thematic meaning.

Taken from http://repository.usu.ac.id/bitstream/123456789/27661/3/Chapter%20II.pdf oleh VA Telaumbanua - ‎2011