Frequency: The word is one of the 3000 most common words in English.
1.
A sophisticated machine, device, or method is more advanced or complex than others.
Honeybees use one of the most sophisticated communication systems of any insect.
...a large and sophisticated new British telescope.
ADJ
2.
Someone who is sophisticated is comfortable in social situations and knows about culture, fashion, and other matters that are considered socially important.
Claude was a charming, sophisticated companion...
= refined
ADJ
3.
A sophisticated person is intelligent and knows a lot, so that they are able to understand complicated situations.
These people are very sophisticated observers of the foreign policy scene.
ADJ