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Definition
During every night; continuously.
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Related Idioms
w m d y n
week in, week out
During every week; continuously.
month in, month out
During every month; continuously.
day in, day out
Every day; daily; constantly or continuously (especially, of something…
year in, year out
During every year; always.
night person
A person whose preference or custom is to remain awake and active duri…