a place where sports, performances, and other kinds of entertainment are watched
The arena was full of people.

being extremely large in size or amount
The building was colossal.

the man who rules an empire
The emperor wasn't popular.

an ancient Roman fighter
gladiators lived short lives.

an easily recognizable or important structure that is easy to see
There should be a landmark up ahead.

someone who suffers or is killed for their beliefs, and is usually respected and remembered by others who share the same beliefs
He is regarded as a martyr within his religion.

to kill a large number of people
Panthers continued to be massacred in the name of sport until the 6th century.

not genuine or real, but attempting to appear so
We created a mock-up of the book.

to ill-treat, oppress or harass
Her people were persecuted in her country.

to EMIT something like a wave
A lot of heat is radiating from the fire.