(1) A port city in northeastern Greece on an inlet of the Aegean Sea; second largest city of Greece
WiktionaryText
Etymology
From Θεσσαλονίκη (Thessaloniki) (daughter of Philip B' and Nikasipolis of Thessaly, stepsister of Alexander the Great), from Θεσσαλία (Thessalia) "Thessaly" + νίκη (nike) "victory".
Proper noun
The second-largest city in Greece, capital of the Greek Region of Macedonia.