背部 is read as はいぶ (haibu) and means back.
はいぶ
haibu
はいぶこうだほう
back blow method (for dislodging an obstruction in the windpipe)
せおう
to carry on one's back
しょいなげ
seoi nage (judo)
せなか
back (of the body)
はいけい
backing
せびろ
business suit
せい
height
はいご
back
はいにん
breach of trust
せばんごう
number on back of player's shirt
そむく
to run counter to
はいしん
betrayal