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synonym Comparative
老朽化
VS
老朽

Differences Between "老朽化" and "老朽"

Option A
老朽化
Meaning
deterioration; obsolescence; aging (of infrastructure, buildings, etc.)
Reading
ろうきゅうか (rōkyūka)
Syllabus Level
N2
Practical Example
このマンションは築50年で、設備の老朽化が進んでいる。
This apartment building is 50 years old, and its facilities are deteriorating.
Option B
老朽
Meaning
superannuation, obsolescence, deterioration (due to age), worn out
Reading
ろうきゅう (rōkyū)
Syllabus Level
N1
Practical Example
老朽化した橋は通行止めになった。
The dilapidated bridge was closed to traffic.

Which one to use?

Select the correct Japanese word for this context

Which word fits this context: "(deterioration; obsolescence; aging (of infrastructure, buildings, etc.))"?
🎉 正解 / Correct!
使い分け解説:
- 老朽化: Refers to the process of something, typically buildings, machinery, or infrastructure, becoming old, worn out, and less functional due to age and lack of maintenance. (建物や機械などが古くなり、機能が低下したり使用できなくなったりすること。)
- 老朽: Refers to buildings, machinery, or infrastructure becoming old and dilapidated, losing functionality or safety due to age. Rarely used for living things. (建物、機械、設備などが古くなって傷み、機能が低下したり危険になったりする状態を指す。生物にはあまり使われない。)
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