half sister

US/ˈhæf sɪstɚ/

noun

A female sibling sharing a single parent.

Meanings

nounhalf sister (plural half sisters)

plural half sisters · alternative half-sister · alternative halfsister

  1. hobbiesA female half sibling (same dam, different sires).

Synonyms & antonyms

nouna sister who has only one parent in common with you

Broader
Also see

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Middle Englishhalfesister
  2. Englishhalf sister

From Middle English halfesister, half-suster, half sister, equivalent to half + sister. Compare Dutch halfzus, halfzuster (“half-sister”), German Halbschwester (“half-sister”), Swedish halvsyster (“half-sister”), Icelandic hálfsystir (“half-sister”).

Full word history & related roots →

Translations

Bulgarian полусестра, полусестра
  • полусестра (polusestra)a female half sibling
  • полусестра (polusestra)daughter of the same father but a different mother
  • полусестра (polusestra)daughter of the same mother but a different father
Catalan germanastra
  • germanastraa female half sibling
Chinese Cantonese 同父異母 /同父异母, 同父异母
  • 同父異母 /同父异母 (tung⁴ fu⁶ ji⁶ mou⁵)daughter of the same father but a different mother
  • 同父异母 (tung⁴ fu⁶ ji⁶ mou⁵)daughter of the same father but a different mother
Chinese Mandarin 同父異母 /同父异母, 同父异母
  • 同父異母 /同父异母 (tóngfù yìmǔ)daughter of the same father but a different mother
  • 同父异母 (tóngfùyìmǔ)daughter of the same father but a different mother
Danish halvsøster
  • halvsøstera female half sibling
Dutch halfzus, halfzuster
  • halfzusa female half sibling
  • halfzustera female half sibling
Esperanto duonfratino
  • duonfratinoa female half sibling
Finnish siskopuoli, sisarpuoli
  • siskopuolia female half sibling
  • sisarpuolia female half sibling
French demi-sœur
  • demi-sœura female half sibling
German Halbschwester
  • Halbschwestera female half sibling
Greek ετεροθαλής αδελφή
  • ετεροθαλής αδελφή (eterothalís adelfí)a female half sibling
Hindi सौतेली बहन
  • सौतेली बहन (sautelī bahan)a female half sibling
Hungarian féltestvér
  • féltestvéra female half sibling
Icelandic hálfsystir
  • hálfsystira female half sibling
Irish leathdheirfiúr, leasdeirfiúr
  • leathdheirfiúra female half sibling
  • leasdeirfiúra female half sibling
Italian sorellastra, mezza sorella
  • sorellastraa female half sibling
  • mezza sorellaa female half sibling
Japanese 腹違い, 畑違い
  • 腹違い (harachigai)daughter of the same father but a different mother
  • 畑違い (hatakechigai)daughter of the same father but a different mother
  • 異腹daughter of the same father but a different mother
  • 異母 (ibo)daughter of the same father but a different mother
Latin semisoror, soror consanguineus
  • semisorora female half sibling
  • soror consanguineusdaughter of the same father but a different mother
  • soror agnatadaughter of the same father but a different mother
  • agnatadaughter of the same father but a different mother
  • uterinadaughter of the same mother but a different father
  • uterina sorordaughter of the same mother but a different father
Lithuanian įseserė
  • įseserėa female half sibling
Norwegian Bokmål halvsøster
  • halvsøstera female half sibling
Polish siostra przyrodnia
  • siostra przyrodniaa female half sibling
Portuguese meia-irmã
  • meia-irmãa female half sibling
Romanian soră vitregă
  • soră vitregăa female half sibling
Russian единокровная сестра
  • единокровная сестра (jedinokrovnaja sestra)daughter of the same father but a different mother
Scottish Gaelic leth-phiuthar
  • leth-phiuthara female half sibling
Spanish media hermana, hermanastra
  • media hermanaa female half sibling
  • hermanastraa female half sibling
Swedish halvsyster, halvsyrra
  • halvsystera female half sibling
  • halvsyrraa female half sibling
Urdu سوتیلی بہن
  • سوتیلی بہن (souteli behan)a female half sibling
Vietnamese cùng cha khác mẹ
  • cùng cha khác mẹdaughter of the same father but a different mother
Welsh hanner chwaer
  • hanner chwaera female half sibling
Cite this entry
APA

half sister. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/half%20sister

MLA

“half sister.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/half%20sister. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “half sister,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/half%20sister.

Source: half sister on Wiktionary, CC BY-SA 4.0.