định tinh

Một định tinh sáng lấp lánh trên bầu trời đêm.

Definition

1. Noun:
   • Fixed star: A star that appears to maintain a constant position relative to other stars in the night sky, as opposed to "wandering stars" (planets). In traditional and historical astronomy, this term distinguishes stars from planets.
   • (Figurative) A constant, stable, or guiding element: Used metaphorically to describe a person, principle, or thing that provides unwavering stability or guidance.

Usage Examples

• Noun:
  • Trong thiên văn học cổ, các ngôi sao được gọi là định tinh. (In ancient astronomy, stars were called fixed stars.)
  • Anh ấy như một định tinh trong cuộc đời tôi. (He is like a fixed star in my life.)

Advanced Usage

• The concept is primarily used in historical, literary, or poetic contexts, as modern astronomy understands that stars do move, albeit very slowly from our perspective.

Variants and Related Words

• Sao (n): star (the general term).
• Hành tinh (n): planet (literally "wandering star").

Synonyms

• Fixed star.
• Constant star.
• Lodestar (in its figurative sense).

Related Idioms

• Vững như định tinh: As steady/immovable as a fixed star. Used to describe something or someone extremely stable and reliable.
  • Lập trường của ông ấy vững như định tinh. (His stance is as steady as a fixed star.)