content = ['***************************************nt', 'ADVENTURE', '*', 'Solving', 'it', 'in', 'easy', 'steps', '*nt', '*tttt', '*nt', '*tttt', '*nt', '***************************************ntt', 'FROM:', 'THE', 'ROM', 'DR.', 'CALL', 'HER']

import re

for each in content:
m = re.match('.*[tnrfv]+',each)
if m:
    content.remove(each)