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Definition of boiler

boiler

/ˈbɔɪ.lər/
boil · er

Plural:boilers
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boiler Lexical Profile

boiler Game Scores & Validity

• noun

1

A domestic appliance or tank that heats water to provide a home with a central heating system and a hot water supply.

Example

"Our gas boiler broke down during the blizzard, leaving the apartment freezing and without hot water."


2

A strong, closed metal vessel in which water is heated under pressure to generate steam or hot water, typically used for driving engines, industrial processes, or providing power.

Example

"The factory had to shut down production for a week to repair a critical leak in the main steam boiler."


3

A large pot, kettle, or container used specifically for boiling liquids or cooking food in large quantities.

Example

"The chef placed the heavy copper boiler on the industrial stove to prepare the seafood stew."

Synonyms
View all synonyms for boiler

Word Nuance & Usage

In domestic contexts, British English commonly uses 'boiler' to describe a home's combined central water and radiator heating unit, whereas American English frequently distinguishes between a 'water heater' (for tap water) and a 'furnace' (for forced-air climate control).

• Rhymes for boiler

Word Origin & Etymology

Derived from the verb 'boil' combined with the agent suffix '-er'. It first appeared in the mid-16th century, originally referring to a person who boils, and was adapted in the 18th century to describe the pressurized vessels driving the Industrial Revolution.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Boiler. In Wordmom Dictionary. Retrieved Oct 18, 2026, from https://wordmom.com/dictionary/boiler
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