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View synonyms for

sis

1

[ sis ]

noun

Informal.

-sis

2
  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.

SIS

1

abbreviation for

  1. Also calledMI6 (in Britain) Secret Intelligence Service
  2. (in New Zealand) Security Intelligence Service
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

sis

2

/ ɪ /

noun

  1. informal.
    short for sister
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

sis

3

/ siːs; ɪ /

interjection

  1. informal.
    an exclamation of disgust
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of sis1

1825–35, Americanism; shortened form; compare Dutch zus for zuster sister

Origin of sis2

From Greek
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Word History and Origins

Origin of sis1

Afrikaans, possibly from Khoi

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