def convertIntoWords(lst):
wordList = []
for item in lst:
wordList += item.split()
return wordList
lst = ['Python is an interpreted high-level', 'general-purpose programming language']
print(convertIntoWords(lst))
'''
run:
['Python', 'is', 'an', 'interpreted', 'high-level', 'general-purpose', 'programming', 'language']
'''