灯台

とうだい

lighthouse

JLPT N2

Character Breakdown

Meaning and Usage

"灯台" (とうだい) primarily means "lighthouse," a tall structure with a light that guides ships at sea. It is a common noun used in both literal and figurative contexts.

Common Collocations

  • 灯台の光 (とうだいのひかり): the light of the lighthouse, often used to describe guidance or illumination.
  • 灯台下暗し (とうだいもとくらし): a famous Japanese proverb meaning "the base of the lighthouse is dark," used to express that people often overlook things close to them.

Usage Notes

When using "灯台," it usually refers to the physical lighthouse structure. The word is often found in maritime contexts or in idiomatic expressions. The proverb "灯台下暗し" is frequently used in everyday conversation and writing to remind someone to pay attention to their immediate surroundings or situations.

Common Mistakes

Learners sometimes confuse "灯台" with "灯" (light) alone or other words related to light sources. Remember that "灯台" specifically refers to a lighthouse, not just any light or lamp.

Example Sentences

とうだいのひかりがよるのうみをてらしている。

The lighthouse's light is illuminating the night sea.

とうだいもとくらしということわざは、みぢかなことにきづかないことをいみする。

The proverb 'The base of the lighthouse is dark' means not noticing things close to you.

とうだいはふねがあんぜんにこうこうできるようにじゅうようなやくわりをはたしている。

Lighthouses play an important role in ensuring ships can navigate safely.