鉄棒
てつぼう · tetsubou · JLPT N1 · noun
rod
棒 — wood radical 木 + 奉 (offer/hold)
A semantic-phonetic compound: 木 gives the meaning (a wooden stick or club), while 奉 supplies the sound (bàng/fèng). Originally referring to a wooden staff or cudgel, the meaning later extended colloquially to 'excellent' or 'great,' as in something strong and impressive.