A traditional term for the study of the RULES governing the way WORDS are combined to from SENTENCES in a language. In this use, syntax is opposed to MORPHOLOGY, the study of word structure. An alternative definition (avoiding the concept of 'word') is the study of the interrelationships between ELEMENTS of SENTENCE STRUCTURE, and of the rules governing the arrangement of sentences in SEQUENCES. In this use, one might then talk of the 'syntax of the word'. In GENERATIVE linguistics, the syntactic component is one of three major organizational units within a grammar (the others being PHONOLOGICAL and SEMANTIC), containing rules for the generation of syntactic structures (e.g.PHRASE-STRUCTURE rules, TRANSFOMATIONAL rules). The exact nature of the syntactic rules within this component varies from one grammatical theory to another. Syntactic structures (PATTERNS,or CONSTRUCTIONS) are analysable into sequences of syntactic relationships linguistic ITEMS have with other items in a construction.Some recent studies propose an analysis
whereby categories are analysed as sets of syntactic features,to permit a greater degree of generalisation across categories. For example. using the features V(=verbal) and N(=nominal), the suggestion has been made that the four categories of verb, noun, adjective and preposition can be analysed respectively as:
This kind of approach is referred to as feature-based syntax. Both positive and negative SUB-CATEGORISATION features can be used, either singly or in combination, depending on the syntactic facts and on the analytic principles proposed. The study of the field as a whole is known as syntactic theory. Studying the sequential arrangements of syntax is sometimes referred to as 'syntactic', but there is a possibility of confusion here with the earlier use of this term as one of the three major divisions of SEMIOTICS (along with PRAGMATICS and SEMANTICS). The adjective form of 'syntax' in modern linguistics is 'syntactic', as in the above examples; 'syntactical' these days sounds quaint.