There is no synonym for enlightenment of Buddhism in English language. However, it can be described as the highest happiness or end of all suffering.
Knowledge, understanding, awareness...
Buddhism
The Goal of Buddhism is to reach "enlightenment".
Nirvana.
The focus of Buddhism is to alleviate human suffering by leading sentient beings to enlightenment.
Buddhism has no god or gods, It is up to the individual to run their life well and find enlightenment.
The fundamentals of Zen Buddhism included seeking enlightenment. Zen Buddhism is the practice of oneness.
The ultimate enlightenment in Buddhism is known as nirvana or the nirvana state.
Buddhism does not use drugs; Buddhists seek enlightenment by non-chemical means.
Mahayana is longer and easier path towards enlightenment and Vajrayana is quicker and more harsh and hardworking path towards the achievement of enlightenment.
Siddhatta attained enlightenment in what is now India.
The goal of Buddhism is to reach enlightenment (nirvana) so its one of the main reasons for being.
Buddhism has been spreading since the enlightenment of the Buddha, the numbers of Buddhists has gone up and down but the places where Buddhism is known and followed is generally increasing.