Synonyms for Furthermore:

adv.

all (adverb)
what is more, moreover.
also (adverb)
besides, not to mention, too, further, Including, together with, also, And, in addition, along with, likewise, moreover, as well as, additionally.
however (adverb)
but, nevertheless, though, still, Albeit, yet, however, although.
in addition (adverb)
as well, additionally, moreover, not to mention, yet, too, besides, to boot, likewise.

adv

additionally (adverb)
moreover.
along (adverb)
as well.
also (adverb)
besides, as well as, further, to boot, additionally, moreover, in addition, And, Including, also, together with, too, along with, not to mention, likewise.
however (adverb)
but, although, nevertheless, still, Albeit, yet, however, though, moreover.
to a greater extent (adverb)
more.

conj.

however (conjunction)
still.

n.

anyway, even so, incidentally, in any case, the fact that, namely, by the way, anyhow. furthermore (noun)
what is more, moreover.
in addition (noun)
increase, item, to boot, more, as well.

Other synonyms:

anyhow, anyway, namely. incidentally. in addition
more, item.
Other relevant words:
anyhow, increase, namely, as well, additionally, to boot, incidentally, anyway, more, item, what is more.

Usage examples for furthermore

  1. Furthermore documents have recently been brought to light which mention at San Gemignano, in the years 1305 and 1306, a certain Folgore. – Sketches and Studies in Italy and Greece, Vol III. by John Symonds
  2. Furthermore they had proclaimed their determination to choke all rivalry. – The Silver Horde by Rex Beach
  3. He furthermore expressed the strong desire which he felt that the king might be induced to make a personal visit to the queen at Dover, whither she would gladly come to receive him, so soon as Calais should have been saved. – Project Gutenberg History of The Netherlands, 1555-1623, Complete by John Lothrop Motley