1.
quality (of a product or item)
The standard or grade of excellence of a product or manufactured good.
品質を保つ。
To maintain quality.
品質 refers specifically to the quality of manufactured products or goods. It is narrower than 質, which covers quality in general.
COMMON EXPRESSIONS:
- 品質管理: quality control (QC)
- 品質保証: quality assurance (QA)
- 高品質: high quality
- 品質向上: quality improvement
- 品質が落ちる: quality declines
CONTRAST:
- 品質: product/goods quality (business, manufacturing)
- 質: quality in general (睡眠の質 = sleep quality)
- 品: quality/class of a person or thing (broader, sometimes character)
REGISTER:
Common in business, manufacturing, and consumer contexts. Often seen in product reviews and advertising.