From Strongs Definitions:
day
Old Testament Hebrew Definition:
03117 yowm {yome}
from an unused root meaning to be hot; TWOT - 852; n m
AV - day 2008, time 64, chronicles + 01697 37, daily 44, ever 18,
year 14, continually 10, when 10, as 10, while 8, full 8
always 4, whole 4, alway 4, misc 44; 2287
1) day, time, year
1a) day (as opposed to night)
1b) day (24 hour period)
1b1) as defined by evening and morning in Genesis 1
1b2) as a division of time
1b2a) a working day, a day's journey
1c) days, lifetime (pl.)
1d) time, period (general)
1e) year
1f) temporal references
1f1) today
1f2) yesterday
1f3) tomorrow
God made it all, Jesus died for our sins.
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Best wishes.