Possible Clues:

• "It's ___!" (thumbs-up reply)
• "Chicago Is So Two Years ___" Fall Out Boy
• 'Long, Long ___'
• "It was 20 years ___ today..."
• "It was 20 years ___ today ..."
• Word before "in a galaxy far, far away"
• In earlier times
• "Four score and seven years __ ... "
• Word in the first line of the Gettysburg Address
• "... and seven years ___"