sis

¹

[sis]

noun

Informal.

1. sister.

-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

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

2. (in New Zealand) Security Intelligence Service

sis

²

/ sɪs /

noun

1. informal,  short for sister

sis

³

/ siːs, sɪs /

interjection

1. informal,  an exclamation of disgust

Word History and Origins

Origin of sis¹

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

Origin of sis²

From Greek

Word History and Origins

Origin of sis¹

Afrikaans, possibly from Khoi

Related Words

• buddy 
• comrade 
• crony 
• playmate