Left Hand
Left Arm, Left-Hand Side
noun, の adjective
Your left hand is your left hand! This word can also be used to mean left arm, and left-hand side.
ひだりて
This is a jukugo word, which usually means on'yomi readings from the kanji. This word, however, uses the kun'yomi readings. This is possibly because of 手, because body parts often use kun'yomi. You learned both readings with the individual words, so you should be able to read this.
あねの左手には、ほくろがある。
My older sister has a mole on her left hand.
左手を上げてください。
Please raise your left hand.
左手のひじをハチにさされた。
I was stung by a bee on the elbow of my left arm.
左手にみえるのが、スカイツリーです。
What you can see on your left-hand side is the Sky Tree.