something that happens at a given place and time | an artifact that has been created by someone or some process |
a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory | items for sale to the individual consumer |
a phenomenon that follows and is caused by some previous phenomenon | a quantity obtained by multiplication |
a special set of circumstances | the set of elements common to two or more sets |
| a consequence of someone's efforts or of a particular set of circumstances |
| a chemical substance formed as a result of a chemical reaction |