1. essential - Noun
2. essential - Adjective
3. essential - Adjective Satellite
Belonging to the essence, or that which makes an object, or class of objects, what it is.
Hence, really existing; existent.
Important in the highest degree; indispensable to the attainment of an object; indispensably necessary.
Containing the essence or characteristic portion of a substance, as of a plant; highly rectified; pure; hence, unmixed; as, an essential oil.
Necessary; indispensable; -- said of those tones which constitute a chord, in distinction from ornamental or passing tones.
Idiopathic; independent of other diseases.
Source: Webster's dictionarySecret operations are essential in war; upon them the army relies to make its every move. Sun Tzu
It is essential to seek out enemy agents who have come to conduct espionage against you and to bribe them to serve you. Give them instructions and care for them. Thus doubled agents are recruited and used. Sun Tzu
Yoga is the settling of the mind into silence. When the mind has settled, we are established in our essential nature, which is unbounded Consciousness. Our essential nature is usually overshadowed by the activity of the mind. Patañjali
Listening well is as powerful as talking well, and is also as essential to true conversation. Chinese Proverb
Common sense is essential. Japanese Proverb
The heart is the most essential human quality. Japanese Proverb