備忘 is read as びぼう (bibou) and means reminder.
びぼう
bibou
びぼうかがく
residual value
びぼうろく
notebook
そなわる
to be among
そなえる
to be born with
びこう
note (for reference)
そなえつける
to provide
そなえ
preparation
びひん
fixtures
そなえつけ
equipment
びんごおもて
high quality tatami covering made with soft rush from Hiroshima Prefecture
びっちゅう
Bitchū (former province located in the west of present-day Okayama Prefecture)
びんちょう
high-grade charcoal produced from ubame oak (Quercus phillyraeoides)