N3 - 途端とたん
just (now, at the moment, etc.)
N3 - 端はし
end (e.g. of street), edge, tip, margin, point
N2 - 先端せんたん
pointed end, tip, fine point
N1 - 極端きょくたん
extreme, extremity
N1 - 半端はんぱ
remnant, fragment, incomplete set, fraction, odd sum, incompleteness