Nouns denoting time and temporal relations

July
the month following June and preceding August
 
reign of terror
any period of brutal suppression thought to resemble the Reign of Terror in France
 
yesterday
the recent past
 
Fast of Gedaliah
(Judaism) a minor fast day on Tishri 3 that commemorates the killing of the Jewish governor of Judah
 
Nissan
the seventh month of the civil year; the first month of the ecclesiastic year (in March and April)
 
Mother's Day
second Sunday in May
 
Admission Day
in some states of the United States: a legal holiday commemorating the day the state was admitted to the Union
 
eternity
time without end
 
Shrovetide
immediately preceding Lent
 
Great Depression
a period during the 1930s when there was a worldwide economic depression and mass unemployment
 
life
the period between birth and the present time
 
seedtime
the time during which seeds should be planted
 
air alert
the time period during which military and civilian agencies are prepared for an enemy air attack
 
snap
a spell of cold weather
 
Restoration
the reign of Charles II in England; 1660-1685
 
kip
sleep
 
Presidents' Day
the third Monday in February; commemorates both presidents Lincoln and Washington
 
Flag Day
commemorating the adoption of the United States flag in 1777
 
mean solar time
(astronomy) time based on the motion of the mean sun (an imaginary sun moving uniformly along the celestial equator)
 
Nyquist frequency
(telecommunication) twice the maximum frequency occurring in the transmitted signal
 
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