飄々

ひょうひょう

whistling (of the wind), blowing

飄逸

ひょういつ

easygoing, unconventional, happy-go-lucky, light

飄然

ひょうぜん

casually (come or go); aimlessly; abruptly; unexpectedly

零

れい ぜろ ゼロ

zero, nought

零戦

ぜろせん ゼロせん れいせん

Zero fighter plane

零点

れいてん

zero, no marks

零本

れいほん

fragmentary remains of a large set of writings, the odd volume, a few pages

零細

れいさい

insignificant, trifling, paltry, cottage (industry), tiny (company)

零時

れいじ

twelve o'clock, midnight, noon

零度

れいど

zero, absolute zero (temp.), freezing point

零れ

こぼれ

spilling, spill

零す

こぼす

to spill, to drop, to shed (tears)

零露

れいろ れいつゆ

dripping dew

零敗

れいはい

going undefeated, losing without scoring a point, whitewash, being shut out

巾零

きんれい

nilpotent

冪零

べきれい

nilpotent

零元

れいげん

zero element

零半

ゼロはん ゼロハン

50cc motorbike

零ベクトル

れーベクトル

null vector