kr
Học thuậtThân thiện
Definition
Proper noun:
- Khmer Rouge: A communist political and military organization in Cambodia. It is most infamously known for its brutal regime from 1975 to 1979, which led to widespread atrocities and mass casualties.
Symbol (Chemistry):
- Krypton: The chemical symbol for a noble gas element. It is a colorless, odorless, inert gas present in very small quantities in the Earth's atmosphere.
Usage Examples
- Proper noun (Khmer Rouge):
- The KR regime was responsible for one of the 20th century's most devastating genocides.
- Historians study the rise and fall of the KR.
- Symbol (Krypton):
- Kr is used in certain types of high-performance lighting.
- The atmosphere contains about 1 part per million of Kr.
Advanced Usage
- The abbreviation KR is primarily used in historical and political contexts to refer specifically to the Cambodian organization. In scientific contexts, Kr is always used as a symbol and is not spelled out.
Variants and Related Words
- Khmer Rouge: The full name of the organization abbreviated as KR.
- Krypton: The full name of the chemical element represented by the symbol Kr.
- Noble gas: The family of inert gases to which krypton (Kr) belongs.
Synonyms
- For KR (organization): Pol Pot regime, Communist Party of Kampuchea (CPK).
- For Kr (element): (None, as it is a specific element symbol)
Notes on Meaning
- The meaning of "kr" is entirely dependent on context. In standard writing, "KR" (often capitalized) refers to the political group, while "Kr" (with a lowercase 'r') is the chemical symbol. They are distinct entities with no relation.
- It is not a standard English word but an abbreviation or a symbol.
Noun
- a communist organization formed in Cambodia in 1970; became a terrorist organization in 1975 when it captured Phnom Penh and created a government that killed an estimated three million people; was defeated by Vietnamese troops but remained active until 1999
- a colorless element that is one of the six inert gasses; occurs in trace amounts in air