補 is built from the 礻 (altar / spirit (left)) and 甫 components.
It reads ホ like 甫, as do 捕, 浦, 舗, and 輔 — learn 甫 once and the family's reading comes with it.
A common word using 補 is 補う (おぎなう), meaning “to compensate for”.
Don't confuse it with 初 and 祈 — 初 has the cloth radical 衤 (five dots); 祈 the altar radical 礻 (four)
