smelter

As a noun smelter

is a person employed to do smelting.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun smelter

is a person employed to do smelting.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between forge and smelter

is that forge is furnace or hearth where metals are heated prior to hammering them into shape while smelter is a person employed to do smelting.

As a verb forge

is to shape a metal by heating and hammering.

As nouns the difference between ironworks and smelter

is that ironworks is a factory in which iron is manufactured or iron goods are made while smelter is a person employed to do smelting.

As nouns the difference between crucible and smelter

is that crucible is a cup-shaped piece of laboratory equipment used to contain chemical compounds when heating them to very high temperatures while smelter is a person employed to do smelting.

As nouns the difference between furnace and smelter

is that furnace is a device for heating while smelter is a person employed to do smelting.

As a verb furnace

is to heat in a furnace.

As nouns the difference between foundry and smelter

is that foundry is a facility that melts metals in special furnaces and pours the molten metal into molds to make products. Foundries are usually specified according to the type of metal dealt with: iron foundry, brass foundry, etc while smelter is a person employed to do smelting.

As nouns the difference between smelter and shelter

is that smelter is a person employed to do smelting while shelter is a refuge, haven or other cover or protection from something.

As a verb shelter is

to provide cover from damage or harassment; to shield; to protect.

As nouns the difference between ironmonger and smelter

is that ironmonger is (chiefly|british) a retailer in iron goods and hardware while smelter is a person employed to do smelting.