Questions & Answers about Δεν ξέρω το νόημα αυτής της φράσης.
Δεν is the standard negation word used before verbs in Modern Greek. It means not.
So:
- ξέρω = I know
- δεν ξέρω = I do not know / I don't know
In normal statements, δεν goes directly before the verb.
Ξέρω means I know in the sense of I am aware of, I understand, or I know a fact/information.
It is the 1st person singular form of ξέρω:
- ξέρω = I know
- ξέρεις = you know
- ξέρει = he/she/it knows
It is used here because the speaker is saying they do not know or understand the meaning of something.
A learner might compare it with γνωρίζω, which also relates to knowing, but γνωρίζω is more often used for knowing/being acquainted with a person, place, or subject, or meeting/getting to know. In this sentence, ξέρω is the natural choice.