lõi
Definition
Noun:
- Core / Heartwood: The central, oldest, and often hardest part of a tree trunk or branch, typically darker in color than the surrounding sapwood.
- Core / Center: The central or most essential part of any object, structure, or concept.
- Core (Technical): In engineering and technology, the central, often cylindrical, part of a device (e.g., a cable, inductor, mold).
Adjective (Colloquial):
- Highly Experienced / Seasoned: Describes a person who is extremely skilled, knowledgeable, or shrewd in a particular area, often through long practice.
Usage Examples
Noun:
- Lõi cây sồi rất cứng. (The oak's heartwood is very hard.)
- Lõi của vấn đề rất phức tạp. (The core of the issue is very complex.)
- Lõi cáp bị đứt. (The cable core is broken.)
Adjective:
- Ông ấy là người lõi trong nghề buôn bán. (He is a highly experienced man in the trading business.)
Advanced Usage
"lõi kép": dual-core (in computing).
- Máy tính này có vi xử lý lõi kép. (This computer has a dual-core processor.)
"lõi từ": magnetic core (in physics/engineering).
- Lõi từ của máy biến áp được làm từ thép silic. (The transformer's magnetic core is made of silicon steel.)
Variants and Related Words
Lõi đời (adj, colloquial): worldly-wise, street-smart.
- Anh chàng lõi đời đó khó bị lừa. (That street-smart guy is hard to fool.)
Lõi cây (n): heartwood, tree core.
- Lõi cây lim có màu nâu sẫm. (The ironwood's heartwood has a dark brown color.)
Synonyms
- Core / Heart: central part.
- Essence: most important part.
- Nucleus: central point.
- Veteran / Expert: (for the adjective) highly experienced person.
Related Idioms
Vào đến lõi: to understand or reach the very core/essence of something.
- Bài giảng giúp tôi hiểu vấn đề vào đến lõi. (The lecture helped me understand the issue to its very core.)
Cứng như lõi: as hard as heartwood; describing something or someone very tough and resilient.
- Gỗ này cứng như lõi. (This wood is as hard as heartwood.)