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NLTK corpus: Find the definition and examples of a given word using WordNet

NLTK corpus: Exercise-6 with Solution

Write a Python NLTK program to find the definition and examples of a given word using WordNet.

From Wikipedia,
WordNet is a lexical database for the English language. It groups English words into sets of synonyms called synsets, provides short definitions and usage examples, and records a number of relations among these synonym sets or their members. WordNet can thus be seen as a combination of dictionary and thesaurus. While it is accessible to human users via a web browser, its primary use is in automatic text analysis and artificial intelligence applications. The database and software tools have been released under a BSD style license and are freely available for download from the WordNet website. Both the lexicographic data (lexicographer files) and the compiler (called grind) for producing the distributed database are available.

Sample Solution:

Python Code :

from nltk.corpus import wordnet 
syns = wordnet.synsets("fight")
print("Defination of the said word:")
print(syns[0].definition())
print("\nExamples of the word in use::")
print(syns[0].examples())

Sample Output:

Defination of the said word:
a hostile meeting of opposing military forces in the course of a war

Examples of the word in use::
['Grant won a decisive victory in the battle of Chickamauga', 'he lost his romantic ideas about war when he got into a real engagement']

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Next: Write a Python NLTK program to find the sets of synonyms and antonyms of a given word.

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Python: Tips of the Day

Find current directory and file's directory:

To get the full path to the directory a Python file is contained in, write this in that file:

import os 
dir_path = os.path.dirname(os.path.realpath(__file__))

(Note that the incantation above won't work if you've already used os.chdir() to change your current working directory, since the value of the __file__ constant is relative to the current working directory and is not changed by an os.chdir() call.)

To get the current working directory use

import os
cwd = os.getcwd()

Documentation references for the modules, constants and functions used above:

  • The os and os.path modules.
  • The __file__ constant
  • os.path.realpath(path) (returns "the canonical path of the specified filename, eliminating any symbolic links encountered in the path")
  • os.path.dirname(path) (returns "the directory name of pathname path")
  • os.getcwd() (returns "a string representing the current working directory")
  • os.chdir(path) ("change the current working directory to path")

Ref: https://bit.ly/3fy0R6m