Furthermore

• POS: Adverb
• HYPHEN: fur=ther=more

CIDE DICTIONARY

Furthermore, adv. 

 or conj. Moreover; besides; in addition to what has been said.  [1913 Webster]

OXFORD DICTIONARY

Furthermore, adv. in addition, besides (esp. introducing a fresh consideration in an argument).

THESAURUS

Furthermore

above, additionally, again, all included, along, also, altogether, among other things, and all, and also, and so, as well, au reste, beside, besides, beyond, else, en plus, extra, farther, for lagniappe, further, in addition, inter alia, into the bargain, item, likewise, more, moreover, on the side, on top of, over, plus, similarly, then, therewith, to boot, too, yea, yet

ROGET THESAURUS

Furthermore

Addition

N addition, annexation, adjection, junction, superposition, superaddition, superjunction, superfetation, accession, reinforcement, increase, increment, supplement, accompaniment, interposition, insertion, added, additional, supplemental, supplementary, suppletory, subjunctive, adjectitious, adscititious, ascititious, additive, extra, accessory, au reste, in addition, more, plus, extra, and, also, likewise, too, furthermore, further, item, and also, and eke, else, besides, to boot, et cetera, and so on, and so forth, into the bargain, cum multis aliis, over and above, moreover, with, withal, including, inclusive, as well as, not to mention, let alone, together with, along with, coupled with, in conjunction with, conjointly, jointly, adde parvum parvo magnus acervus erit.