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armpit; under one's arm; side; flank
beside; close to; near; by
aside; to the side; away; out of the way
off-track; off-topic
deuteragonist; supporting role
second verse (in a linked series of poems)
「脇」 has another reading with different meanings.
暑いので脇の下にたくさん汗をかいている。
I am sweating under my arms.
道の脇に小さな祠が立っていた。
A small shrine stood by the roadside.
かばんを脇に抱えて走り出した。
I tucked the bag under my arm and started running.