once more; another time; anew; in addition: Will you spell your name again, please?
2.
in an additional case or instance; moreover; besides; furthermore.
3.
on the other hand: It might happen, and again it might not.
4.
back; in return; in reply: to answer again.
5.
to the same place or person: to return again.
—Idioms
6.
again and again, with frequent repetition; often: They went over the same arguments again and again.
7.
as much again, twice as much: She earns as much again as I do.
Origin: bef. 900; ME agayn, ageyn, OE ongegn opposite (to) = onon, in (see a-1) + gegn straight; c. OHG ingagan, ON igegn
Pronunciation note: By far the most common pronunciation of again, in all parts of the United States, is/əˈgɛn/Show Spelled Pronunciation[uh-gen]Show IPA, with the same vowel heard in yet and pep. The pronunciation/əˈgeɪn/[uh-geyn], rhyming with pain, occurs chiefly in the Atlantic states. Again said as/əˈgɪn/[uh-gin], with the vowel of pit or sip, or with a vowel somewhere between /ɛ/[e]and /ɪ/[i], is the common pronunciation in much of the South, where /ɛ/[e]and /ɪ/[i]tend to become neutralized, or more like one another, before /m/[m]and /n/[n], leading to a lack of noticeable distinction between such pairs as pen and pin, ten and tin.