The document provides an overview of semantics, which is defined as the study of meaning in language. It discusses several theories and approaches to analyzing word meanings, including semantic features, roles, and relationships between words. Specifically, it covers componential analysis, where words are broken down into semantic components or features; semantic roles that describe how entities are involved in actions; and lexical relations like synonymy and antonymy between words. The document also addresses some limitations of different theories of meaning.
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4. What is Semantics?
• The study of meaning of words, phrases, and
sentences.
– Lexical semantics (words and meaning relationship
among words)
– Phrasal/ sentential semantics (syntactic units larger
than a word)
• What a speaker conventionally means
(objective or general meaning)- not what he is
trying to say (subjective or local meaning)
5. Semantics is a sub discipline of linguistics which
focuses on the study of meaning. Semantics
tries to understand what meaning is as an
element of language and how it is constructed
by language as well as interpreted, obscured
and negotiated by speakers and listeners of
language.
6. How can we describe the meaning of
different words?
• Three types of semantic analysis:
–Words as ‘containers’ Semantic features
– ‘roles’ they fulfill Semantic roles
– ‘relationship’ with other words lexical
relation
7. Semantic features
• Syntactically correct sentences but
semantically odd.
– The hamburger ate the man.
– My cat studies linguistics.
– The table listens to the radio
• This relates to the conceptual components of
the words ‘hamburger, cat & table’ not
human.
8. Semantic Features
• Semantic properties: The components of
meaning of a word.
• Meaning as collection of
properties/features typically with two
possible values (+ / -)
• Example of componential analysis:
baby is [+ young], [+ human], [+animate]
10. Identify the features (1)
1. (a) widow, mother, sister, aunt, maid
(b) widower, father, brother, uncle
The (a) and (b) words are
The (a) words are
The (b) words are
[+ human]
[+ female]
[+ male]
2. (a) bachelor, paperboy, pope, chief
(b) bull, rooster, drake, ram
The (a) and (b) words are
The (a) words are
The (b) words are
[+ male]
[+ human]
[+ animal]
11. Semantic roles
• Words are described according to the roles they
fulfill with the situation described in a sentence.
– The boy kicked the ball
• verb indicates action
• Boy performs the action= agent
• Ball undergoes the action= theme
• The NPs describe the role of entities (people or
things) involved in the action, i.e. they have
certain semantic (or thematic) roles.
12. Semantic Roles
• Agent= the entity that performs the action
• Theme= the entity that undergoes the action
• Experiencer= one who perceives something
• Instrument= an entity used to perform an action
• Location= the place where the action happens
• Source= the place from which an action originates
• Goal= the place where the action is directed
13. Semantic roles
• John is writing with a pen
agent instrument
• Mary saw a mosquito on the wall
experiencer theme location
• The children ran from the playground to the pool
agent source goal
• The boy opened the door with a key
• The dog bit the stick
• With a stick, the man hit the dog.
14. Lexical relations
• What is the meaning of ‘big’?
– ‘Large’ or the opposite of ‘small’
• What is the meaning of ‘daffodil’?
– A kind of flower
• Analysis in terms of lexical relations- explain the
meaning in terms of the relationship with other
words
• Synonymy
• Antonymy
• Hyponymy
• Prototype
• Homophones and Homonyms
• Polysemy
15. Synonymy
• Synonymy: words that have the same meanings or that
are closely related in meaning
• E.g. answer/reply – almost/nearly – broad/wide –
buy/purchase – freedom/ liberty
• ‘sameness’ is not ‘total sameness’- only one word would
be appropriate in a sentence.
– E.g. Sandy only had one answer correct on the test.
(but NOT reply)
• Synonyms differ in formality
– E.g buy/purchase – automobile/car
16. Antonymy
• Antonymy: words that are opposites in meaning, e.g. hot
& cold.
• Types
• Gradable= not absolute, question of degree
– Hot & cold – small & big
• Non-gradable:
– Dead & alive – asleep & awake
E.g. happy/sad married/single
present/absent fast/slow
17. Synonymy & Antonymy
Synonymy or Antonymy
Flourish – thrive
Intelligent – stupid
Casual – informal
deep-profound
Drunk – sober
Sofa – couch
Hide – conceal
cheap – expensive
Rich - wealthy
a. synonym
b. antonym
c. synonym
d. synonym
e. antonym
f. Synonym
g. Synonym
h. Antonym
i. synonym
18. Hyponymy
• Hyponymy: Words whose meanings are specific
instances of a more general word, i.e. one thing is
included (kind of) in another thing.
– e.g. cats and dogs are hyponyms of the word animal.
• In this case cats and dogs are co-hyponyms share
the same ‘superordinate’
• Other e.g. daffodil & flower / carrot & vegetable /
ant & insect
19. Homophones and Homonyms
• Homonymy: A word which has two or more entirely
distinct (unrelated) meanings,
– e.g. bank: ‘financial institution’ ; ‘of a river’.
– Bat: ‘flying creature’ or ‘used in sports’
– Race: ‘contest of speed’ or ‘ethnic group’
• Homophony: Different words pronounced the same
but spelled differently,
– e.g. two, to and too.
– Flour and flower
– Meat and meet
– Right and write
20. Polysemy
• Polysemy: A word which has multiple
meanings related by extension,
– e.g. bright: ‘shining’ ; ‘intelligent’
– ‘Head’ of the body and the person at the top of a
company.
– ‘Foot’ of a body and of a mountain and of the bed
or chair.
– ‘Run’ a person runs, the water runs
21. Metonymy
• What do you think about these sentence?
– He drank the whole bottle. (container-content)
– The White House announced. (king-crown)
– I gave her a hand. (whole-part)
• A word substituted for another word with which it
is closely associated e.g. bottle is used for water
• Metonymy is "a figure of speech in which an
attribute or commonly associated feature is used
to name or designate something." A short
definition is "part for whole."
22. Collocation
• Words tend to occur with other words.
• E.g. table/chair
• Butter/bread
• Salt/pepper
• Hammer/ nail
23. THEORIES OF MEANING
• Four theories to the meaning of words:
– Dictionary meanings
– Mental image
– Referents
– Componential
24. Dictionary Meanings
• demand (N)
– the need or desire that people have for particular goods or
services
• desire (N)
– a strong hope or wish
• wish (N)
– the act of wishing for something
• wish (V)
– to hope that something will happen
25. Problems with dictionary meanings
• Understanding meaning of word involves
understanding all the words in definition
• Circularity
– pride: the quality or state of being proud
– proud: feeling or showing pride
26. More problems with dictionary meanings:
• They are NOT theoretical claims about the nature of
meaning, but a practical aid to people who already
speak a language. They are usually paraphrases.
• They may be a way of learning the meaning of some
words, but there is much more to word meaning
than the dictionary definition. Why?
27. Mental image…
• Is a graphic representation in one’s mind of a referent
(when I say table, you "draw" a table in your mind)
• There is much more to meaning than a simple mental
image. Why?
– People may have very different mental images for same word
(lecture – from perspective of student vs. teacher)
– Some words, even though having meaning, have no real
definite image
(honesty, or the)
– Mental images are usually a prototype or standard of the
referent
(bird: what bird? -- image may exclude atypical examples)
30. Advantages of prototype theory
• Provides some insight into the way we
conceive of certain ideas/objects
• Evidence from experimental psychology
– reaction time: typical member < atypical member
• Prototypes may help children learn the
meanings of new words
31. Disadvantages of prototype theory
• Culturally and socially dependent.
– prototypes can vary across populations.
• Many words have no clear mental images.
– forget, things, without, concept, …..
32. Referents…
• Have to do with the fact that words usually stand for (refer
to) actual objects or relations in the world.
– Example: “Dubya”, “Florida”, “Disney World.”
• There is much more to meaning than a referent. Why?
– It would exclude from language fantasies, speculations,
and fiction.(Santa Claus refers to what?).
– The fact that two words (or expressions) refer to the
same thing does not indicate that they mean the same
thing.(Queen Elizabeth = Queen of England in 2005?).
– What referents do these words have: forget, the,
some…?
33. Componential Theory
• The meaning of a word is specified by smaller
semantic components
• Semantic components are primitive elements
of meaning expressed as binary features
(+ or -)
35. Advantages of componential theory
• Captures similarities among semantically
related words
• Groups meanings into natural classes (like
phonology)
36. Disadvantages of componential theory
• Difficult to analyze abstract concepts
– What are the semantic components of blue?
• [+ color]? [+ blueness]?
• Meaning of semantic components is
sometimes no more explanatory than the
words they are specifying