Refers to the actual hand on the left side of the body. Common with particles such as 左手で, 左手に, and 左手を.
She writes with her left hand.
I am wearing a ring on my left hand.
noun, noun which may take the genitive case particle 'no'
left-hand side; left-hand direction; on the left
Uses 手 in the sense of 'side' or 'direction'; often appears as 左手に, 左手の, or 左手側 to describe where something is located.
When you leave the station, there is a post office on your left.
Please go straight along the road on the left.
He plays the guitar with his left hand.
As you leave the station, there's a convenience store on your left.
If you have a question, please raise your left hand.
The reception desk is on the left-hand side of the venue.