Define Jack Of All Trades Meaning

The other definitions are wrong.
A Jack of all Trades is someone who is decent at everything, but not especially adept at any one thing.

a person who is good at many things but has no particular specialty (often with master of none at the end)

A term used to describe someone who knows a lot about many things, but, with the second tag "master of none" added it transforms into a derogatory phrase meant to emphasize how mastery of one skill is important for deeper knowledge.

However, one, oft forgotten tag is the third one: "is oftentimes better than a master of one". Instantly, the term reverses meaning, symbolizing how a person who knows a lot about many things that integrates their skills allows them to surpass even a master of one.

Interesting phrase, nonetheless.

a jack of all trades is a person who is not an expert in any fields, but knows a little about everything.

jack of all trades often lack an university degree, as they didnt specialize in anything, but studied/learned a bit of every subject.

Something that school aspires to develop its students into, a "jack of all trades" is a well-rounded person who has adapted many skills and is somewhat knowledgeable on many topics but is not an expert (or even an apprentice) in most or even all of the said skills.

Person who seems to be good at all tasks he/she attempts.

A person, usually a male, who is good at everything he does, and is considered to be a good catch.

A person who is skilled at a variety of different things, but not to the same level as a person who is specialised in one of these things.

A Jack of All Trades is a master at none, but often better than a master of one.

Someone who is very good at doing a variety of useful things.