sis

[ sis ]
See synonyms for sis on Thesaurus.com
nounInformal.

Origin of sis

1
1825–35, Americanism; shortened form; compare Dutch zus for zustersister

Other definitions for -sis (2 of 2)

-sis

  1. a suffix appearing in loanwords from Greek, where it was used to form from verbs abstract nouns of action, process, state, condition, etc.: thesis; aphesis.

Origin of -sis

2
From Greek

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How to use sis in a sentence

British Dictionary definitions for sis (1 of 3)

sis1

/ (sɪs) /


noun
  1. informal short for sister

British Dictionary definitions for sis (2 of 3)

sis2

sies

/ (sɪs, siːs) /


interjection
  1. Southern African informal an exclamation of disgust

Origin of sis

2
Afrikaans, possibly from Khoi

British Dictionary definitions for SIS (3 of 3)

SIS

abbreviation for
  1. Also called: MI6 (in Britain) Secret Intelligence Service

  2. (in New Zealand) Security Intelligence Service

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