横|よこyoko[0]heiban (flat)

1. nounhorizontal (as opposed to vertical)
   母親ははおやは赤ん坊あかんぼうをベッドに横よこにした。↗

   The mother laid her baby on the bed.
2. nounside-to-side (as opposed to front-to-back); width; breadth
   道みちが濡ぬれていたので、車くるまは横よこにスリップしたにちがいない。↗

   As the road was wet, the car must have slipped sideways.
3. nounside (of a box, etc.)
   家いえの横よこはつたで覆おおわれていた。↗

   The side of the house was covered with ivy.
4. nounbeside; aside; next to
   あの人ひとは眼めの横よこにほくろがある。↗

   That person has a mole at the side of his eye.
5. noununconnected

• SynonymかたわらWrittenWritten prose: beside something, or 'while also doing', as in 「仕事の傍ら」; more literary than 「横」.
• RelatedそばNeutralA place right next to someone or something, in any direction, as in 「母の側にいる」; 「横」 is the left or right side, and also the horizontal direction or width.
• Related脇わきNeutralThe armpit or a spot at one's side, and by extension a secondary position, as in 「脇に置く」 or 「脇役」; 「横」 centers on direction and sides.
• RelatedおそばFormalFormal, with a respectful, old-fashioned air: the side of a superior or elder, or one who attends there; in everyday speech use 「横」 or 「側」.
• RelatedみもとFormalAn archaic, elegant honorific for the side or presence of an esteemed person, seen mostly in letters and religious writing; in daily speech use 「側」.
• Antonym縦たてNeutralThe vertical or front-to-back direction, and length; the opposite of 「横」, which covers the horizontal, left-to-right direction and width.

Use 「横」 for the horizontal or left-to-right direction, sides, and width. For a spot right next to someone use 「側」; 「脇」 covers the armpit or a secondary spot; 「お側」 and 「御許」 are formal; 「傍ら」 is written prose; 「縦」 is the opposite.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. （よこ）左右さゆうの方向ほうこう。水平すいへいの方向ほうこう。
2. （よこ）東西とうざいの方向ほうこう。
3. （よこ）側面そくめん。
4. （よこ）傍かたわら。
5. （よこ）同列どうれつの関係かんけい。