What's the difference between
and
Enter two words to compare and contrast their definitions, origins, and synonyms to better understand how those words are related.

Wis vs Sis - What's the difference?

wis | sis |

As an adverb wis

is certainly, surely.

As an adjective wis

is certain.

As a verb wis

is to know.

As an initialism SIS is

Secret Intelligence Service

As a noun sis is

shortened form of sister.

wis

English

Alternative forms

* wiss, ywis, iwis

Etymology 1

From (etyl) . More at ywis.

Adverb

(en adverb)
  • (rare, obsolete, or, dialectal) Certainly, surely
  • * 1884 , Charlotte Mary Yonge, The armourer's prentices :
    • So I wis would the Dragon under him [...]
  • (rare, obsolete, or, dialectal) Really, truly
  • (rare, obsolete, or, dialectal) Indeed
    • "As wis God helpe me." --Chaucer.

    Adjective

    (en adjective)
  • (rare, obsolete, or, dialectal) Certain
  • (rare, obsolete, or, dialectal) Sure
    • He was wis on his word
    Derived terms
    * (l)

    Etymology 2

    From an incorrect division, mistaking . See ywis for more information. The German verb wissen'' appears similar, but in fact corresponds etymologically to the English verb ''wit ; both of those verbs are only indirectly related to this one.

    Verb

  • (obsolete, or, archaic) To know.
  • (obsolete, or, archaic) To think, suppose.
    • "Howe'er you wis ." --R. Browning.
  • (obsolete, or, archaic) To imagine, ween; to deem.
    • Nor do I know how long it is (For I have lain entranced, I wis ). --Coleridge.
    ----

    sis

    English

    Initialism

    (Initialism) (head)
  • (British)

    • Synonyms

    * * Secret Intelligence Service

    See also

    * GCHQ * * SAS * SBS

    Anagrams

    * *