sexcentenary

As nouns the difference between terms and sexcentenary

is that terms is while sexcentenary is a six-hundredth anniversary.

As an adjective sexcentenary is

of or pertaining to the number six hundred, or to a six hundred year period.

As nouns the difference between anniversary and sexcentenary

is that anniversary is of a significant event, a day that is an exact number of years (to the day) since the event occurred often preceded by an ordinal number indicating the number of years that have elapsed since the event while sexcentenary is a six-hundredth anniversary.

As an adjective sexcentenary is

of or pertaining to the number six hundred, or to a six hundred year period.

As nouns the difference between year and sexcentenary

is that year is the time it takes the earth to complete one revolution of the sun (between 36524 and 36526 days depending on the point of reference) while sexcentenary is a six-hundredth anniversary.

As an adjective sexcentenary is

of or pertaining to the number six hundred, or to a six hundred year period.