What do they mean please: Ensconce Protégé Pogrom Avant-garde?

Yogesh Joshi, who reports for The Hindustan Times, from Pune has problems with these words. He has a Master's degree in Political Science and a diploma in journalism. If he complains about the difficulty in quickly understanding the following words, the news writers better take note!

Huddle

Ensconce

Protégé

Pogrom

Avant-garde