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Python - WordNet Interface
Neha Kumawat
2 years ago
A wordNet is lexical database of NLTK corpus ,It is an english dictionary of python.
It used to find the meanings of words, synonyms, antonyms, and more.
and can be imported as follows:
from nltk.corpus import wordnetSynsets and Lemmas
Synsets
In WordNet, a synset is a a set of synonyms. Every Synset has a name, a part-of-speech, and a number.
Lemmas
Similar words in a Synset are called Lemmas. Synset may contains one or more lemmas.Lemmas returns array of words.
#to install the missing module
import nltk
nltk.download('wordnet')
from nltk.corpus import wordnet as wn
lemma_words=wn.synset('pawl.n.01').lemma_names()
print(lemma_words)
Output of the program is
[nltk_data] Downloading package wordnet to /root/nltk_data...
[nltk_data] Unzipping corpora/wordnet.zip.
['pawl', 'detent', 'click', 'dog']
Recommended blog for you: NLP - Word Tokenization with Python
Word Definition
Using the definition() method, finds the meaning of the word lemmas.it returns a string. The input to the method is the word of synset.
from nltk.corpus import wordnet as wn
print("Synset Meaning: ",wn.synset('pawl.n.01').definition())
output of the program is
Synset Meaning: a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward
Usage example()
example() method is used to show the example of the word.
from nltk.corpus import wordnet as wn
res_exm = wn.synset('dog.n.03').examples()
print ('Synset example :',res_exm)output of the program is
Synset example :['you lucky dog']
Opposite Words
antonyms() function is used to to get the opposite word.
from nltk.corpus import wordnet as wn
# get all the antonyms
res_a = wn.lemma('horizontal.a.01.horizontal').antonyms()
print ("opposite Words: ",res_a)output of the program is
opposite Words: [Lemma('inclined.a.02.inclined'), Lemma('vertical.a.01.vertical')]
Conclusion
In this article we explained wordnet and its methods with example.
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