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Kanji in this word
宇Eaves, Roof, House6 strokes宙Mid-air, Air, Space8 strokes飛Fly, Skip (pages), Scatter9 strokes行Going, Journey, Carry Out6 strokes士Gentleman, Scholar, Samurai3 strokes Full entry on Jisho うちゅうそくど ·
escape velocity ; orbital velocity ; cosmic speed ; space velocity