adj. 25B6; adverb further, it gave him an excellent excuse not to attend : FURTHERMORE, moreover, what's more, also, additionally, in addition, besides, as well, too, to boot, on top of that, over and above that, into the bargain, by the same token; archaic withal.
25B6; adjective
the further side of the field : MORE DISTANT, more remote, remoter, further away/off, farther (away/off); far, other, opposite.
further information : ADDITIONAL, more, extra, supplementary, supplemental, other; new, fresh.
25B6; verb an attempt to further his career : PROMOTE, advance, forward, develop, facilitate, aid, assist, help, help along, lend a hand to, abet; expedite, hasten, speed up, accelerate, step up, spur on, oil the wheels of, give a push to, boost, encourage, cultivate, nurture, foster.
impede.