Concatenation of strings is supported using the plus operator:

>>> "New" + "found" + "land"
Newfoundland

Also the related augmented assignment operator:

>>> s = "New"
>>> s += "found"
>>> s += "land"
>>> s
'Newfoundland'

Newfoundland, the sixteenth largest island in the world, is one of relative few closed, triple-compound words in English:

Remember that strings are immutable, so here the augmented assignment operator is binding a new string object to s on each use. The illusion of modifying s in place is achievable because s is a reference to an object, not an object itself. That is, although the string itself is immutable, the reference to it is mutable.