also: てんいた
noun
tabletop; countertop; top surface
Refers to the flat top surface of a table, desk, counter, or similar furniture. Often used in contexts like furniture assembly, cleaning, or describing dimensions.
このテーブルの天板は傷がつきやすい。
The top of this table scratches easily.
天板のサイズを測ってください。
Please measure the size of the tabletop.
noun
baking tray; baking sheet; sheet pan
Only with reading てんばん
Specifically refers to a flat metal tray used in ovens for baking. This sense is restricted to the reading 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.
Compound of 天 (ten, 'top') and 板 (ita/ban, 'board'). The reading てんばん uses the on'yomi for both characters, while てんいた mixes on'yomi and kun'yomi.