noun
baking tray; baking sheet; sheet pan
A flat metal tray used for baking in an oven. The reading てんパン is specific to this cooking sense; the same kanji 天板 can also be read てんばん with other meanings (e.g., tabletop, soundboard).
See also: 天板 (てんばん)
クッキーを天板に並べてオーブンに入れた。
I arranged the cookies on a baking sheet and put them in the oven.
天板にオーブンシートを敷いてください。
Please line the baking tray with parchment paper.
Same kanji but read てんばん, meaning tabletop, top board, or soundboard of a musical instrument. The baking tray sense is always てんパン.
Compound of 天 (てん, 'top' or 'surface') and 板 (いた/ばん, 'board' or 'plate'), with the reading パン possibly influenced by the English word 'pan' or as a phonetic shift for clarity. The exact derivation of the パン reading is uncertain.