盤 is built from the 舟, 殳 (weapon / strike), and 皿 components.
It belongs to a phonetic family with 般 and 搬 — they share the 舟 component and the reading ハン.
A common word using 盤 is 基盤 (きばん), meaning “foundation, basis”.
Kanji that look similar include 搬 and 艇.