noun
thin arm; slender arm
Literally a thin or slender arm. Often used in descriptions of physical appearance.
彼女の細腕には時計がよく似合う。
A watch looks good on her slender arm.
noun
slender means; meager livelihood
Figurative use referring to limited financial resources or a modest way of earning a living. Often appears in set phrases like 細腕一本で生きる.
彼女は細腕一本で子供を育て上げた。
She raised her children by her own slender means.