different between essential vs well-known

English

Alternative forms

• essentiall (obsolete)

Etymology

From Late Latin essenti?lis, from Latin essentia (“being, essence”).

Pronunciation

• IPA^(key): /??s?n.??l/, [??s?n.t??l]
• Hyphenation: es?sen?tial

Adjective

essential (comparative more essential, superlative most essential)

1. Necessary.

   Synonyms: indispensable; see also Thesaurus:requisite

   Antonyms: accidental, accessorial, incidental, unnecessary, unneeded
2. Very important; of high importance.

   Synonyms: crucial; see also Thesaurus:important

   Antonyms: unimportant; see also Thesaurus:insignificant
3. (biology) necessary for survival but not synthesized by the organism, thus needing to be ingested
4. Being in the basic form; showing its essence.

   Synonyms: see Thesaurus:intrinsic, Thesaurus:bare-bones

   Antonyms: adscititious; see also Thesaurus:extrinsic

5. Really existing; existent.

   Synonyms: see Thesaurus:existent

   Antonyms: see Thesaurus:inexistent
6. (geometry) Such that each complementary region is irreducible, the boundary of each complementary region is incompressible by disks and monogons in the complementary region, and no leaf is a sphere or a torus bounding a solid torus in the manifold.

   (Can we add an example for this sense?)

7. (medicine) Idiopathic.
8. Having the nature of essence; not physical.

Antonyms

• inessential, unessential, non-essential, nonessential

Derived terms

Translations

Noun

essential (plural essentials)

1. A necessary ingredient.
2. A fundamental ingredient.

   (Can we add an example for this sense?)

Related terms

• essence

Translations

Further reading

• essential on Wikipedia.Wikipedia

Anagrams

• siletanes

English

Alternative forms

• well known, wellknown

Pronunciation

• (General American) IPA^(key): /?w?l?no?n/
• (Received Pronunciation) IPA^(key): /?w?l?n??n/

Adjective

well-known (comparative better-known or more well-known, superlative best-known or most well-known)

1. Familiar, famous, renowned or widely known.
2. (computing, not comparable) Generally recognised; reserved for some usual purpose.
   • 1972, Vint Cerf, Jon Postel, RFC 322 - Well known socket numbers

     We would like to catalog other sockets which are supposed to be well-known

   • 2003, John Mueller, .NET development security solutions

     If the call to this function fails, you can assume the SID was invalid — even if it's a well-known SID.

   • 2007, Larry L Peterson, Bruce S Davie, Computer networks: a systems approach

     A common approach is for the server to accept messages at a well-known port.

Hypernyms

• known

Related terms

• celebrity

Translations