Caffe latte and Espresso

Caffe latte noun - Strong espresso coffee with a topping of frothed steamed milk.

Espresso and caffe latte are semantically related. In some cases you can use "Espresso" instead a noun phrase "Caffe latte".

Espresso noun - Strong black coffee brewed by forcing hot water under pressure through finely ground coffee beans.

Caffe latte and espresso are semantically related. Sometimes you can replace phrase "Caffe latte" with "Espresso", this terms are similar.