This is the 730th most frequent Greek word.
ξέρουμε
"We know."
The word 'ξέρουμε' here means 'we know' and is used to express knowledge or awareness of a fact (the answer in this case).
Ξέρουμε την απάντηση στην ερώτηση.
We know the answer to the question.
In this sentence, 'ξέρουμε' means 'we know' and is used to convey understanding or aptitude regarding a method or process (solving the problem).
Ξέρουμε πώς να λύσουμε αυτό το πρόβλημα.
We know how to solve this problem.
Here, the word 'ξέρουμε' specifies a proficiency or skill that the subject possesses (swimming well).