Savvy (adjective)

1. Having knowledge, understanding, or skill in a particular field or activity.
2. Having the ability to understand and deal with a situation in a practical and effective way.
3. Showing knowledge, understanding or skill in a particular field or activity.

Origin:

From french savoir, from latin sapere ("to be wise").

Examples:

1. She has a great deal of business savvy.
2. He has a savvy understanding of the stock market.
3. She was known for her political savvy.
4. He has a savvy approach to dealing with difficult customers.
5. He has a savvy sense of humor.