How to say “What does this mean?” in Greek

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Τι σημαίνει αυτό; tee see-ME-nee af-TO

What does this mean?

💡 Memory tip: σημαίνω = to mean, related to σήμα (sign), as in “semantics”.

“Τι σημαίνει αυτό; Δεν το ξέρω.”

What does this mean? I don't know it.

This word doesn't change form the way verbs, nouns, and adjectives do — what you see above is its only form.