先端【せんたん】
pointed end, tip, point, cusp (of a leaf, crescent moon, etc.), apex (of a curve), forefront, vanguard, spearhead, leading edge
発端【ほったん】
origin, genesis, opening, start, beginning
最先端【さいせんたん】
cutting edge, leading edge, forefront, state of the art, tip, end
末端【まったん】
end, tip, extremities, terminal
半端【はんぱ】
remnant, fragment, incomplete set, incompleteness, fraction, odd sum, halfway, half-hearted, perfunctory, irresponsible, foolish
端的【たんてき】
frank, direct, plain, straightforward, point-blank, concise
道端【みちばた】
roadside, wayside
異端【いたん】
heresy
両端【りょうたん】
both ends, either end, both edges, double-mindedness, sitting on the fence
途端【とたん】
just (now, at the moment, etc.), just as, in the act of, as soon as, at the moment that