(astronomy) galaxy cluster

silver (color)

nickel silver

(shogi) promoted silver general

leggings

silver

penetrate

a wheel furrow, track, or rut / another person's mistake, a prior example (generally negative)

arrowhead / Used instead of 鉄(てつ) (tetsu) in a company logo to avoid to imply 金(かね)を失(うしな)う (kane o ushinau, “lose money”).

iron, the metal and the metallic chemical element / (more generally) steel / short for 鉄砲 (teppō, literally “cannon”, but in this case, refers to the poisonous fugu blowfish or dishes made from it)