immediately - instantly; at once, seldom - occurring at widely separated intervals; infrequently, modern - of or pertaining to the present or recent time, microsecond - one-millionth of a second, occasional - occurring irregularly; now and then, annual - occurring every year; yearly, semiannual - occurring twice a year, millennium - a period of a thousand years, midday - the middle of the day; noon, antiquity - ancient times, especially before the Middle Ages (over 1000 years ago),

McGrawHill6-8Lesson45Week38

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