歩武 is read as ほぶ (hobu) and means a step.
ほぶ
hobu
ほどうきょう
footbridge
ほへい
infantry
ほはば
step
ぶあいざん
percentage calculation
ほへいしだん
infantry division
かちいくさ
infantry battle
ふひょう
pawn
ほたい
ambulacral zone (on echinoderms)
ほそつ
footmen
ほそく
pacing off (a measurement or distance)
あゆみいた
footboard
ぶんぶ
literary and military arts