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Semantics Adapted in part from ning_relations.html

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1 Semantics Adapted in part from http://www.ling.upenn.edu/courses/Spring_2001/ling001/mea ning_relations.html http://www.ling.upenn.edu/courses/Spring_2001/ling001/mea ning_relations.html 1 st class Chapter 5

2 Swiss linguist Ferdinand de Saussure (1857-1913) Every linguistic sign has two components: signifier (French signifiant): the "sound image" or form, i.e. pronunciation signified (French signifié): the concept represented, i.e. meaning

3 Cognitive Linguistics Signifier (pronunciation) Signified (“the world out there”) Intermediate level  conceptualization Language provides prompts for the construction of much richer realizations (language is much more limited than thought)

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5 Signs are arbitrary: English dog French chien Spanish perro Portuguese cachorro German Hund Russian sobaka Hebrew kelev Japanese inu Mandarin gou

6 Lexical semantics Lexical semantics deals with the complex meanings of words and their interrelationships.

7 Semantic properties The idea: we can break down words into their component meanings: Semantic property is a notational device used to express the presence or absence of semantic properties (usually indicated by plus and minus signs). woman [+human, +adult, +female] girl [+human, -adult, +female] cow [+bovine, +adult, + female]

8 Semantic Properties Ex.: What semantic property differentiates the following sets of words: 1. table, chair, pencil vs. love, thought, idea 2. table, chair, pencil vs. water, dirt, air 3. run, fly, swim vs. sleep, read, listen Keys: 1. [-/+abstract]; 2. [-/+natural]; 3. [+/-movement]

9 The advantage: We can see how some words relate to each other e.g., “look (at)” & listen (to)” both have the feature [+volition] compared to their [-volition] counterparts “see” and “hear”

10 Problems with semantic property analysis The problem: some words can’t be broken down into binary distinctions (e.g. color terms) Another problem: componential analysis does not capture prototypicality: certain objects are more or less typical examples of their category (robin, sparrow, penguin, ostrich, hawk)

11 Ex. 1 (textbook, p. 222-223): Questions A-G

12 Semantic relationships Why are the following sentences strange? I like bananas, but even more than that I like fruit. I like all kinds of fruit except for bacon. I enjoy playing with dogs and other cats.

13 Words are related to each other in a variety of ways (in terms of morphology and syntax; in terms of form; in terms of meaning)

14 Synonymy & Antonymy There are no true synonyms can you think of sentences where you can/can’t use the words to mean the same thing? small,little annoy, irritate inexpensive, cheap

15 Words are not absolutely the same in meaning as perfect synonyms. begin/ start cannot always be used interchangeably. start an engine; *begin an engine big/ large: a big brother; *a large brother

16 Denotation vs. connotation denotation: The most specific or direct meaning of a word, in contrast to its figurative or associated meanings. denotation connotation: The set of associations implied by a word in addition to its literal meaning. connotation Near synonyms frequently have the same denotation but different connotations. (example: “woman” and “chick”)

17 Examples She’s skinny/she’s thin. Pass the salt (at the dinner table)/pass the sodium chloride (in the lab). He passed away/died/kicked the bucket.

18 Antonyms: types (1) Complementary pairs: pairs that exhaust all possibilities along some dimension. There are only two values in this semantic feature as represented by the members of the pair. (alive/dead) There is a either/or relationship: There is no third possibility. A person is either alive or dead. Examples: natural/man-made, concrete/ abstract, native/nonnative, grammatical/ungrammatical Alive/dead, married/single

19 Antonyms: types (2) Gradable antonyms Scale from X to Y Fast/slow, hot/cold, happy/unhappy Test for gradability: can you use “very? Very large/very small *Very first/very last One member of gradable antonyms is unmarked and the other marked. “old/young”

20 Polar opposites Unmarked (privileged) vs. marked: old/young, long/short, heavy/light fast/slow, deep/shallow When you want to ask a question, it’s normal to use the first word (unmarked): How old/long/heavy/fast/deep is it? Using the marked form makes a presupposition: How shallow is it? (it’s definitely shallow) How young is she? (maybe too young for you) ?How young is your great-grandmother?

21 Relational antonyms Relational antonyms have symmetrical meaning; you can’t have one without the other: Prepositions over / under, before / after, in front of / behind Verbs follow / precede, buy / sell. borrow / lend, bequeath / inherit Nouns wife / husband, ancestor / descendant, guest / host

22 Antonyms The three types of antonyms can be illustrated in the following figures: Complementary alive dead Gradable cold cool warm hot Relational above below

23 Homonymy vs. polysemy two words are homonyms if they are (coincidentally) pronounced the same: Too, to and two lead (the metal) and led (the past tense) pool table and swimming pool a single word is polysemous if it has several meanings: louse the bug and louse the despicable person pool of water on the ground and swimming pool

24 Generally, homonyms are separate entries in a dictionary, while polysemous words list several definitions under the same entry Homonymous or polysemous? Bad news/bad boy Bear arms/grizzly bear/bare arms Turn into an alley/turn into a frog Beech tree/beach Sole (fish)/sole (of foot)/sole (only) Mean (humble)/mean (nasty)

25 Hyponymy Hyponymy ("under-name") is the relation between a more general and more specific word, a relation of inclusion. If you can say: all X's are also Y's then this means: X is a hyponym of Y For example, oak contains all the meanings of tree. thus, oak is a hyponym of tree and tree is the superordinate.

26 HyponymSuperordinate Nouns mouserodent carvehicle thiefcriminal Verbspunchhit look see Adj.scarlet red alertawake

27 Other relationships Metonym: Substituting the name of an attribute or related idea for the actual name (e.g., A Mercedes rear-ended me; The White House has a lot of power; I like to listen to Mozart) Retronym: word combinations that used to be redundant but no longer are (e.g., surface mail, whole milk) Part/whole: toe/foot, hand/body

28 Metaphors Metaphorical extension: an icy stare/the cold shoulder/a heated argument

29 Phrase meaning Verb phrases and thematic roles Noun phrases may have different semantic relationships with the verbs they are used together with. The relationship depends on the verb that is used. In the sentence “the boy found a book”, the boy is the one who performs an action, or the doer of the action (of finding). The boy is called the agent: the NP ‘a book’ is the one or thing that undergoes an action. “A book” is called the theme: Agent and theme are the semantic relationships between the verb and the noun phrases, which is called the thematic roles of the verb.

30 Phrase Meaning Besides agent and theme, there are some other thematic roles. He stays in the hotel. Location: the place where an action takes place. Put the book on the desk Goal: the place to which an action is directed. Walk from the school Source: the place from which an action originates. Write with a pen Instrument: the means by which an action is performed. The wind damaged the roof. Causative: a natural force that causes a change. Helen heard Robert playing the piano. Experiencer: one who perceives something. The tail of the dog wagged furiously. Possessor: one who has something


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