Word Study
furthermore
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, yetROGET 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.For further exploring for "furthermore" in Webster Dictionary Online