Any of various ovens for hardening, burning, or drying substances such as grain, meal, or clay, especially a brick-lined oven used to bake or fire ceramics.
To process in one of these ovens.
A furnace or oven for drying, burning, or baking something, as bricks, grain, or pottery.
To dry, burn, or bake in a kiln.
Origin of kiln
From Middle English kilne, from Old English cylene or cyline (“large oven”), from Latin culīna (“kitchen, kitchen stove”), introduced by the Romans to England in the 1st and 2nd centuries AD.