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Semantics Adapted in part from http://www.ling.upenn.edu/courses/Spring_2001/ling001/meaning_relations.html. 1 st class Chapter 5. Swiss linguist Ferdinand de Saussure (1857-1913). Every linguistic sign has two components:
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SemanticsAdapted in part from http://www.ling.upenn.edu/courses/Spring_2001/ling001/meaning_relations.html 1st class Chapter 5
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
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)
Signs are arbitrary: • English dog • French chien • Spanish perro • Portuguese cachorro • German Hund • Russian sobaka • Hebrew kelev • Japanese inu • Mandarin gou
Lexical semantics • Lexical semantics deals with the complex meanings of words and their interrelationships.
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]
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]
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”
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)
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.
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)
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
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
Denotation vs. connotation • denotation: The most specific or direct meaning of a word, in contrast to its figurative or associated meanings. • connotation: The set of associations implied by a word in addition to its literal meaning. • Near synonyms frequently have the same denotation but different connotations.(example: “woman” and “chick”)
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.
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
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”
Polar opposites • Unmarked (privileged) vs. marked: • old/young, long/short, heavy/lightfast/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?
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
Antonyms • The three types of antonyms can be illustrated in the following figures: Complementaryalive dead Gradable cold cool warm hot Relational above below
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
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)
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.
Hyponym Superordinate Nouns mouse rodent car vehicle thief criminal Verbs punch hit look see Adj. scarlet red alert awake
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
Metaphors • Metaphorical extension: an icy stare/the cold shoulder/a heated argument
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.
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