noun
iron plate; steel plate
Literal meaning: a flat sheet of iron or steel, used in construction, cooking (teppanyaki), etc.
鉄板の上で肉を焼く。
Grill meat on an iron plate.
工場で鉄板を切断する。
Cut steel plates at the factory.
noun
sure thing; guaranteed success
Colloquial use, often in entertainment or business, meaning something is a guaranteed hit or safe bet. Frequently appears as 鉄板ネタ (guaranteed funny material) or 鉄板の組み合わせ (foolproof combination).
See also: 鉄板ネタ
この組み合わせは鉄板だよ。
This combination is a sure thing.
彼のギャグは鉄板だ。
His jokes are guaranteed to get laughs.