“By oneself” in Japanese
Short answer
By oneself in Japanese is “水入らず” (mizuirazu). Full meaning: (being) by oneself, with no outsiders present.
Other ways to say “By oneself” in Japanese
単身
tanshin alone, by oneself, unaccompanied, unaided, single-handed, without one's family
一人で
hitoride alone, by oneself, on one's own
自分で
jibunde by myself, in person, by oneself
ぽつねんと
potsunento solitarily, in a lonely fashion, all alone, by oneself
つくねん
tsukunen (alone and) absentmindedly, vacantly, idly, all alone, (all) by oneself
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