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palm (of the hand)
手のひらに汗をかくほど緊張した面接だった。
The interview was so nerve-wracking that my palms were sweating.
小さな子供の手のひらに飴を一つ載せてあげた。
I placed a piece of candy in the small child's palm.
占い師が手のひらの線を見て運勢を語った。
The fortune-teller read the lines of my palm and spoke of my fate.