adjective / verb / noun
compound
KAHM-pownd/ˈkɑːmpaʊnd/
To combine separate elements into a larger whole.
Water is a compound of hydrogen and oxygen joined in molecules.

Etymology
The pieces express “putting together”: a compound was something produced by combining ingredients. In chemistry, that general idea applies specifically to a substance formed from two or more elements.
In context
mixed together but they keep their own characteristics and are easily separated or they can join together chemically they're much harder to separate now the chemical combination is called a compound
More examples
- Water is a compound of hydrogen and oxygen.
- The compound word “raincoat” joins two familiar words.
- Heavy rain compounds the delays caused by road repairs.
- Interest compounds monthly, earning more interest on the growing balance.
Forms
compound · compounds · compounded · compounding