左側|ひだりがわhidarigawa[0]heiban (flat)

1. no-adjectiveleft side; left-hand side
   車くるまを運転うんてんしているときは左側ひだりがわを通とおりなさい。↗

   Keep to the left when driving.

• Synonym左方さほうWrittenWritten/formal prose, mostly in explanatory texts and news reports, for the left direction. In everyday speech say 「左側」 or 「左」.
• SynonymレフトNeutralA loanword used mainly in baseball for left field and the left fielder. In everyday talk about the left side it is generally not the word people reach for; 「左側」 is usual.
• Synonym左ひだりNeutralThe most basic word for left; stands alone for the direction and also means the political left. 「左側」 is limited to the left side of something, such as a road or seats.
• Related左手ひだりてNeutralRefers to the left hand, but also to a position on the left; common in 「左手に見える」 for what you see along the way. 「左側」 only means the left side itself.
• Related左ひだりNeutralThe most basic word for left; stands alone for the direction and also means the political left. 「左側」 is limited to the left side of something, such as a road or seats.
• Antonym右側みぎがわNeutralThe antonym: the right side. Its usage mirrors 「左側」 exactly, as 「右側通行」 pairs with 「左側通行」.

Use 「左側」 for the left side of something like a road or seats. Say 「左」 for the direction alone, 「左手」 for what you see along the way, 「レフト」 in baseball, and 「左方」 in written prose.

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

1. 左ひだりの側がわ。