Definition

1. Noun:
   • Astronaut: A person who is trained to travel and work in a spacecraft. This is the standard term used in English and in international contexts.
   • Cosmonaut: A specific term for an astronaut from the former Soviet Union or Russia.

Usage Examples

• Noun:
  • Phi công vũ trụ người Việt Nam đầu tiên là Phạm Tuân. (The first Vietnamese astronaut is Phạm Tuân.)
  • Cô ấy mơ ước trở thành một phi công vũ trụ. (She dreams of becoming an astronaut.)
  • Phi công vũ trụ phải trải qua quá trình huấn luyện rất khắt khe. (Astronauts must undergo very rigorous training.)

Advanced Usage

• The term is a compound noun. In formal and scientific contexts, "astronaut" is universally understood. "Cosmonaut" is used in historical or specific geopolitical contexts.

Variants and Related Words

• Nhà du hành vũ trụ (n): This is a synonym, also meaning "astronaut" or "space traveler." It is slightly more formal.
  • Anh ấy là một nhà du hành vũ trụ nổi tiếng. (He is a famous astronaut.)

Synonyms

• Astronaut: The primary and most common synonym.
• Spacefarer: A more general literary term for someone who travels in space.
• Cosmonaut: Specifically denotes a Russian astronaut.

Related Idioms

1. Astronaut, cosmonaut astronaut