again

again /əˈgɛn/ adverb
again
/əˈgɛn/
adverb
Britannica Dictionary definition of AGAIN
1 
: for another time : one more time
2 
: to a previous position or place
3 
— used to introduce a thought or possibility that differs from a preceding one — usually used in the phrase then again
4 
— used to introduce a statement that repeats and stresses something previously said
5 
— used to ask someone to repeat something because you did not hear or understand it clearly
6 
— used in phrases like (chiefly US) half again as much and (chiefly Brit) half as much again to compare two amounts

(every) now and again

— see every

now and again

— see 1now

once again

— see 1once

time and again

— see 1time