保温

ほおん

retaining warmth, keeping heat in, heat insulation

JLPT N1

Character Breakdown

"" means to keep warm or retain heat. It is commonly used for food, containers, clothing, and buildings to describe heat insulation or temperature retention.

Usage

  • Often used with thermos bottles, food containers, clothing, and heating systems.
  • Emphasizes maintaining warmth over time.

Common Collocations

Nuance

It focuses on preventing heat loss rather than generating heat.

Example Sentences

This thermos can keep things warm for a long time.

It's good to keep soup warm on cold days.

Wear clothes that have heat-retaining effects.