1. The fact of being who or what a person or thing is.
or
2. a close similarity or affinity.
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Answer:
The professor suggested tim to try a little harder.
A widely accepted way of thinking or behaving is a convention.
It denotes set of generally accepted standards and norms and a way in which something is usually done. Example for convention is shaking hands when greeting someone. Controversial on the other hand is something causing people to have opposing ways.
