the distinct personality of an individual regarded as a persisting entity | an agent that operates some apparatus or machine |
exact sameness | someone who owns or operates a business |
the individual characteristics by which a thing or person is recognized or known | a shrewd or unscrupulous person who knows how to circumvent difficulties |
an operator that leaves unchanged the element on which it operates | a speculator who trades aggressively on stock or commodity markets |
| (mathematics) a symbol or function representing a mathematical operation |