This is the 772nd most frequent Tamil word.
உலகக
The Tamil word "உலகம்" (ulagam) means "world" or "universe" in English.
Here, 'உலகம்' refers to the world or earth as a whole as an independent entity.
இந்த உலகம் அழகானது.
This world is beautiful.
In this sentence, 'உலக' modifies 'தொடர்', meaning the competition was on a global scale.
அவன் ஒரு உலகத் தொடரில் வென்றான்.
He won in a world competition.
The word 'உலக' here implies a quality or characteristic of being world or international level.