Cen - Mid Cen - Midmost: abbr Cen - The 21st, e.g.: abbr Cen - The 1900's, e.g.: abbr Cen - The 1000's, e.g.: abbr Cen - 100 yrs Cen - The 900's, e.g.: abbr Cen - Fivescore yrs Cen - Long time: abbr Cen - Five score yrs Cen - 1200 mos Cen - Many yrs Cen - 1776-1876: abbr Cen - Millennium div Cen - 20th, e.g.: abbr Cen - What few people live for: abbr Cen - Decimal meas Cen - About 877,000 hrs Cen - 100 years: abbr Cen - 100-yr. period Cen - 1900-99, e.g.: abbr Cen - 100-year time span (abbr.) Cen - One ended in 2000: abbr Cen - Period of 100 yrs Cen - Div. of a millennium Cen - 100-yr. span Cen - 100-yr. timespan Cen - 1900s, e.g.: abbr Cen - 2000s, e.g.: abbr Cen - Time line period: abbr Cen - 100-yr. stretch Cen - 21st, e.g.: abbr Cen - Noted arcade classic, and this puzzle's theme Cen - 800s, e.g.: abbr Cen - Historic span: abbr