English Reference

Word

sis

US/ˈsɪs/

UK/sˈɪs/

Countable noun

Definition

n. a short, informal name for your sister or a very close female friend.

n. an informal clipping of 'sister', frequently used as a term of endearment or a familiar address for a female sibling or close associate.

Examples

“Hey sis, are you coming to dinner tonight?”

“She has been my best friend since primary school, so I usually just call her sis.”

Examples

simple

“Hey sis, are you coming to dinner tonight?”

contextual

“She has been my best friend since primary school, so I usually just call her sis.”

Synonyms

sisterbestie

Antonyms

bro

Domain

Education

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated
Register
Informal

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English Reference