Merriam-Webster Online Dictionary
then (adverb)1.
at that time
2.
a) soon after that next in order of time - walked to the door, then turned
b) following next after in order of position, narration, or enumeration being next in a series - first came the clowns, and then came the elephants
c) in addition - besides then there is the interest to be paid
3.
a) (1) in that case - take it, then, if you want it so much
(2) - used after but to qualify or offset a preceding statement she lost the race, but then she never really expected to win
b) according to that as may be inferred - your mind is made up, then
c) as it appears by way of summing up - the cause of the accident, then, is established
d) as a necessary consequence - if the angles are equal, then the complements are equal
that time - since then, he's been more cautious
existing or acting at or belonging to the time mentioned - the then secretary of state
Merriam-Webster Online Thesaurus
then (adverb)in addition to what has been said
SYNONIMS:
additionally, again, also, besides, either, further, furthermore, likewise, moreover, then, too, withal, yet