jon
n. countable A1 Beginner US //ˈdʒɑn// jon
n. a common name for a man. It is a shorter way of saying the name Jonathan.
n. a masculine given name of Hebrew origin, functioning as a common diminutive of Jonathan. It is frequently used as a standalone name in English-speaking cultures.
My friend Jon lives in London.
The manager asked Jon to lead the meeting because he had the most experience with the client.
While the spelling without an 'h' is often a nickname for Jonathan, many individuals are now given Jon as their legal first name at birth.
Usage
As a proper noun, it is always capitalized.
Pitfall
the JonJonPersonal names in English do not take a definite article unless referring to a specific family or a famous person for clarification.