This is the 143rd most frequent Greek word.
παοκ
PAOK (ΠΑΟΚ) is the abbreviation for "Pan-Thessalonian Athletic Club of Constantinopolitans," a major Greek sports club based in Thessaloniki.
Here, "ΠΑΟΚ" is used as a proper noun, referring to the football club.
Ο ΠΑΟΚ είναι μια ομάδα ποδοσφαίρου στη Θεσσαλονίκη.
PAOK is a football team in Thessaloniki.
In this sentence, "ΠΑΟΚ" is again used as the name of the football team, and the context indicates fandom or support.
Ο Γιώργος υποστήριζε τον ΠΑΟΚ στον τελικό του πρωταθλήματος.
George was supporting PAOK in the championship final.
Here, "ΠΑΟΚ" refers to the team as participants in a sporting event.