How to find out wether a word exists in english using nltk

Question

I am looking for a proper solution to this question. This question has been asked many times before and i didnt find a single answer that suited. I need to use a corpus in N

Answer 1

NLTK includes some corpora that are nothing more than wordlists. The Words Corpus is the /usr/share/dict/words file from Unix, used by some spell checkers. We can use it to find unusual or mis-spelt words in a text corpus, as shown in :

def unusual_words(text):
    text_vocab = set(w.lower() for w in text.split() if w.isalpha())
    english_vocab = set(w.lower() for w in nltk.corpus.words.words())
    unusual = text_vocab - english_vocab
    return sorted(unusual)

And in this case you can check the member ship of your word with english_vocab.

>>> import nltk
>>> english_vocab = set(w.lower() for w in nltk.corpus.words.words())
>>> 'a' in english_vocab
True
>>> 'this' in english_vocab
True
>>> 'nothing' in english_vocab
True
>>> 'nothingg' in english_vocab
False
>>> 'corpus' in english_vocab
True
>>> 'Terminology'.lower() in english_vocab
True
>>> 'sorted' in english_vocab
True