Wn is a Python library for exploring information in wordnets. Install it from PyPI and download some data:

$ pip install wn
$ python -m wn download oewn:2021  # the Open English WordNet 2021

Then start exploring:

>>> import wn
>>> en = wn.Wordnet('oewn:2021')  # Create Wordnet object to query
>>> ss = en.synsets('win')[0]     # Get the first synset for 'win'
>>> ss.definition()               # Get the synset's definition
'be the winner in a contest or competition; be victorious'

PyPI: https://pypi.org/project/wn/