Meaning : The time at which something is supposed to begin.
Example :
They got an early start.
She knew from the get-go that he was the man for her.
Synonyms :
beginning, first, get-go, kickoff, offset, outset, showtime, start, starting time
Time between the beginning and the end of a temporal period.
The middle of the war.
Rain during the middle of April.
middle
The point in time at which something ends.
The end of the year.
The ending of warranty period.
end,
ending