一目散に

いちもくさんに

at full speed, as fast as one's legs can carry one

一目散

いちもくさん

at full speed, as fast as one can go

一家離散

いっかりさん

the breakup (dispersal) of a family

一に

いつに いちに

solely, entirely, only, or

一朝一夕に

いっちょういっせきに

in a day, in a brief interval

一生に一度

いっしょうにいちど

once in a lifetime; once in one's life

一時に

いちどきに いちじに いっときに

at the same time, at a time, at one time, simultaneously

一概に

いちがいに

unconditionally, as a rule

一向に

いっこうに

completely, absolutely, totally

一度に

いちどに

all at once

一般に

いっぱんに

in general, generally

一挙に

いっきょに

at a stroke, with a single swoop

一律に

いちりつに

in the same way

一体に

いったいに

generally, in general

一気に

いっきに

in one go, in one gulp, in one breath, without stopping, without pausing, without resting, in one sitting, at a stretch, all at once

一心に

いっしんに

wholeheartedly, single-mindedly, fervently, intently

一緒に

いっしょに

together (with), at the same time, in a lump

一斉に

いっせいに

simultaneously, all at once

一手に

いってに いちてに

single-handedly, alone, single-handed