Longman Dictionary of

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lexical functional grammar
system which shows their relationship to one another. For example, kinship
terms such as father, mother, brother, sister, uncle, aunt belong to a
lexical field whose relevant features include generation, sex, membership
of the father’s or mother’s side of the family, etc.
The absence of a word in a particular place in a lexical field of a language
is called a lexical gap.
For example, in English there is no singular noun that covers both cow
and bull as horse covers stallion and mare.
lexical functional grammar n
also LFG
a theory of grammar that holds that there are two parallel levels of syntactic
representation: CONSTITUENT STRUCTURE (c-structure), consisting of
context-free phrase structure trees, and functional structure (f-structure),
consisting of attributes such as tense and gender and functions such as
subject and object. An important difference between LFG and the
Chomskyan tradition from which it developed is that many phenomena
that were treated as transformations in the Chomskyan tradition (for
example, passive vs. active sentences) are treated in the LEXICON 3 in
LFG.
lexical gap n
see LEXICAL FIELD
lexical item n
another term for LEXEME
lexical meaning n
see CONTENT WORD
lexical phonology n
a model of morphology and phonology and the lexicon in which the
lexicon is divided into levels or strata. Phonological rules are divided
into lexical rules, which are carried out in the lexicon and include
morphological conditioning, and postlexical rules, which apply across
word boundaries in a separate component order after the rules of
syntax.
lexical phrases n
recurrent phrases and patterns of language use which have become institutionalized
through frequent use, such as “Have we met?” and “You
must be joking”.
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