WordNet

a passageway under a curved masonry construction; "they built a triumphal arch to memorialize their victory" (同)archway
(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it
a curved shape in the vertical plane that spans an opening
expert in skulduggery; "an arch criminal"
a curved bony structure supporting or enclosing organs (especially the inner sides of the feet)
(used of behavior or attitude) characteristic of those who treat others with condescension (同)condescending, patronizing, patronising
form an arch or curve; "her back arches"; "her hips curve nicely" (同)curve, arc
naughtily or annoyingly playful; "teasing and worrying with impish laughter"; "a wicked prank" (同)impish, implike, mischievous, pixilated, prankish, puckish, wicked
lying away from the median and sagittal plane of a body; "lateral lemniscus"
situated at or extending to the side; "the lateral branches of a tree"; "shot out sidelong boughs"- Tennyson (同)sidelong
comparative of the adverb `late; "he stayed later than you did"
coming at a subsequent time or stage; "without ulterior argument"; "the mood posterior to" (同)ulterior, posterior
running lengthwise; "a thin longitudinal strip"; "longitudinal measurements of the hull"
of or relating to lines of longitude; "longitudinal reckoning by the navigator"
over an extended time; "a longitudinal study of twins"
a continuous portion of a circle

PrepTutorEJDIC

(建物の)『アーチ』,迫持(せりもち) / アーチ型の記念碑,弓形門 / 『弓形のもの』 / (足の)土踏まず / …'を'弓形にする / …‘に'アーチをかける / 弓形になる,弓状に伸びる
《名詞の前にのみ用いて》おもな,主要な(chief) / (おもに女・子供が)ずるそうな,いたずらそうな(mischievous)
横の,側面の;横からの / (音声が)側音の / 側面,(道路の)側溝(そっこう) / 側音(英語の[1]など)
《補語にのみ用いて》(人などが)(…するのが)『もっと遅い』《+『in』+『名』(do『ing』)》 / (時刻・時期が)『もっと遅い』,もっと後の / 後で,のちほど / (lateの比較級)(定刻・予定時間・他の人(物))より遅れて,遅く
経度の / 長さの;縦の
『弧』,円弧 / 電弧(2点間を弧状に流れる電流) / 弧を描く / 電弧を生じる