1 〔再び〕again, once more; 〔またいつか〕another time, some other time
There was another earthquake last night.
I will call again some other time.
See you later [tomorrow／next week]. (▼laterは同じ日に)
I'm busy now. Another time, please.
2 〔同じく〕also; too
Junko was beautiful, 「and so was Keiko [but Keiko was beautiful, too].
Ah, but what an awful blunder he has made!
「Why on earth did they [Why did they have to go and] do something so silly?
4 〔その上〕and; moreover
mountain on [after] mountain
He is a poet as well as a scientist.／He is both a scientist and a poet.
She is bright as well as beautiful.／She's as clever as she is beautiful.