Eighty
a "score" is 20 years so a six letter word for four score would be: Eighty
A score is an Old English word for '20', therefore four score would be '80'
a score, as in "Four score and seven years..."
Forty
A 'score' is twenty.... so four score is eighty.
No
a
Eighty
eighty
exhaustion
Engaged.
stinks