a way of doing something or appearing that is considered usual and correct
In the US, a popular convention is to shake hands when you meet someone.
In diplomatic circles, there is a convention of exchanging gifts as a sign of goodwill and cooperation.
The use of formal language is a convention in academic writing to maintain a professional tone.
The convention of shaking hands is a common social norm in many cultures as a gesture of greeting.
Attending the annual industry convention is a customary way for professionals to network and stay updated on the latest trends.