foster

F4O1S1T1E1R1
Canada, Northern England, UK, Wales/ˈfɒstə/Australia, British, Southern, Standard/ˈfɔstə/US/ˈfɔstɚ/US, cot caught merger/ˈfɑstɚ/

adjective

Providing parental care to children not related to oneself.

“foster parents”

Opposite
CommonScrabble 9

Meanings

foster1

adjectivefoster (not comparable)
  1. not comparableProviding parental care to children not related to oneself.

    foster parents

  2. not comparableReceiving such care.

    a foster child

  3. not comparableRelated by such care.

    We are a foster family.

nounfoster (countable and uncountable, plural fosters)

plural fosters

  1. countableinformalA foster parent.

    Some fosters end up adopting.

  2. uncountableThe care given to another; guardianship.
verbfoster (third-person singular simple present fosters, present participle fostering, simple past and past participle fostered)

present singular third person fosters · participle present fostering · participle past fostered · past fostered

  1. transitiveTo nurture or bring up offspring, or to provide similar parental care to an unrelated child.

    Some ſay that Rauens foſter forlorne children, / The whilſt their owne birds famiſh in their neſts: / Oh be to me though thy hard hart ſay no, / Nothing ſo kinde but ſomething pittiful.

    c. 1588–1593, [William Shakespeare], The Most Lamentable Romaine Tragedie of Titus Andronicus: As It was Plaide by the Right Honourable the Earle of Darbie, Earle of Pembrooke, and Earle of Sussex Their Seruants (the First Quarto), London: Printed by Iohn Danter, and are to be sold by Edward White & Thomas Millington, at the little North doore of Paules at the signe of the Gunne, published 1594, →OCLC, [Act II, scene iii]
  2. transitiveTo promote the development of something; to cultivate and grow a thing.

    Our company fosters an appreciation for the arts.

    3 more examples

    ⁠A flower beat with rain and wind, Which once she foster’d up with care

    1850, [Alfred, Lord Tennyson], “Canto VIII”, in In Memoriam, London: Edward Moxon, […], →OCLC, page 10

    And Time, which is the hound of Sish, devoured all things; and Sish sent up the ivy and fostered weeds, and dust fell from the hand of Sish and covered stately things.

    1905, Lord Dunsany [i.e., Edward Plunkett, 18th Baron of Dunsany], The Gods of Pegāna, London: [Charles] Elkin Mathews, […], →OCLC

    Grimsby doesn't ever wound quite as devastatingly as Borat or Brüno, but it's a vital, lavish, venomously profane two fingers up at Benefits Street pity porn and the social division it fosters.

    2016 February 23, Robbie Collin, “Grimsby review: ‘Sacha Baron Cohen’s vital, venomous action movie’”, in The Daily Telegraph (London)
  3. transitiveTo nurse or cherish something.
  4. intransitiveobsoleteTo be nurtured or trained up together.

    There Florimell, in her first ages flowre, And passing beautie did eftsoones reveale, Was fostered by those Graces

    1596, Edmund Spenser, “Book IV, Canto V”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC

foster2

nounfoster (plural fosters)

plural fosters

  1. obsoleteA forester.

    A griesly Foster forth did rush.

    1590, Edmund Spenser, “Book III, Canto I”, in The Faerie Queene. […], London: […] [John Wolfe] for William Ponsonbie, →OCLC

Foster3

proper nounFoster (countable and uncountable, plural Fosters)

plural Fosters

  1. countableuncountableAn English surname originating as an occupation, variant of Forster.

    The Mets got that four-run cushion in the seventh when George Foster stepped in as a pinch-hitter and hit a two-run homer for the 5-1 final.

    1983 June 27, Kevin Dupont, “METS GAIN SPLIT; STAUB TIES MARK”, in The New York Times, archived from the original on 24 May 2015
  2. countableuncountableA male given name transferred from the surname.
  3. A placename
    1. countableuncountableA former settlement in San Diego County, California.
    2. countableuncountableAn unincorporated community in Warren County, Indiana.
    3. countableuncountableA township and unincorporated community therein, in Big Stone County, Minnesota.
    4. countableuncountableA village in Bates County, Missouri; named for Ohio governor Charles Foster.
    5. countableuncountableA village in Pierce County, Nebraska; named for George Foster, original owner of town's site.
    6. countableuncountableA town in Garvin County, Oklahoma.
    7. countableuncountableAn unincorporated community partly in Sweet Home, Linn County, Oregon.
    8. countableuncountableA town in Providence County, Rhode Island; named for Rhode Island statesman Theodore Foster.
    9. countableuncountableA town in Clark County, Wisconsin.
    10. countableuncountableAn unincorporated community in the town of Clear Creek, Eau Claire County, Wisconsin.
    11. countableuncountableA number of other townships, including in Illinois (2), Michigan, Minnesota (1 more), Pennsylvania (3), and South Dakota, listed under Foster Township.
    12. countableuncountableA village in the town of Brome Lake, Brome-Missisquoi Regional County Municipality, southern Quebec, Canada.
    13. countableuncountableA town in South Gippsland Shire, south-east Victoria, Australia.
    14. abbreviationcountableellipsisuncountableEllipsis of Foster County.

Synonyms & antonyms

antonym(s) of “cultivate and grow”

Opposite

adjectiveproviding or receiving nurture or parental care though not related by blood or legal ties

verbpromote the growth of

verbhelp develop, help grow

Similar
Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

foster · adjective, noun, verb

  1. Proto-Germanic*fōstrą“nourishment, food”
  2. Proto-West Germanic*fōstr
  3. Old Englishfōstor“food, sustenance”
  4. Middle Englishfoster
  5. Englishfoster

From Middle English foster, from Old English fōstor (“food, sustenance”), from Proto-West Germanic *fōstr, from Proto-Germanic *fōstrą (“nourishment, food”). Cognate with Middle Dutch voester (“nursemaid”), Middle Low German vôster (“food”), Old Norse fóstr (“nurturing, education, alimony, child support”), Danish foster (“fetus”), Swedish foster (“fetus”).

Full word history & related roots →

Foster · proper noun

English surname, reduced from Forster; also from the noun foster.

Full word history & related roots →

Translations

Bulgarian отглеждам, грижа се за
  • отглеждам (otgleždam)to nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • грижа се за (griža se za)to nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • отглеждам (otgleždam)to cultivate and grow something
  • питая (pitaja)to nurse or cherish something
Catalan criar, cultivar
  • criarto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • cultivarto cultivate and grow something
Chinese Mandarin 營造 /营造
  • 營造 /营造 (yíng zào)to cultivate and grow something
Czech pečovat
  • pečovatto nurture or bring up offspring; or to provide similar parental care to an unrelated child
Danish opfostre
  • opfostreto nurture or bring up offspring; or to provide similar parental care to an unrelated child
Dutch voedster, verzorgen
  • voedsterproviding parental care to unrelated children
  • verzorgento nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • opvoedento nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • kwekento cultivate and grow something
  • aanmoedigento cultivate and grow something
Finnish kasvatus-, kasvatti-
  • kasvatus-providing parental care to unrelated children
  • kasvatti-providing parental care to unrelated children
  • kasvattaato nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • vaaliato cultivate and grow something
  • vaaliato nurse or cherish something
  • hoivatato nurse or cherish something
French adoptant, adoptif
  • adoptantproviding parental care to unrelated children
  • adoptifproviding parental care to unrelated children
  • adoptifreceiving such care
  • adoptifrelated by such care
  • éleverto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • adopterto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • cultiverto cultivate and grow something
German Pflege-, Pflege-
  • Pflege-providing parental care to unrelated children
  • Pflege-receiving such care
  • (in Pflege) aufziehento nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • (in Pflege) großziehento nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • pflegento cultivate and grow something
  • nährento nurse or cherish something
  • fördernto nurse or cherish something
Greek θετός, θετός
  • θετός (thetós)providing parental care to unrelated children
  • θετός (thetós)receiving such care
  • ανατρέφω (anatréfo)to nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • μεγαλώνω (megalóno)to cultivate and grow something
  • ανατρέφω (anatréfo)to nurse or cherish something
Hebrew אָמְנָה
  • אָמְנָה (omná)providing parental care to unrelated children
Hungarian nevelt, istápol
  • neveltreceiving such care
  • istápolto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • felnevelto nurture or bring up offspring; or to provide similar parental care to an unrelated child
Irish altramaigh, máithrigh
  • altramaighto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • máithrighto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • oilto nurture or bring up offspring; or to provide similar parental care to an unrelated child
Italian affidatario, adottivo
  • affidatarioproviding parental care to unrelated children
  • adottivoproviding parental care to unrelated children
  • adottivoreceiving such care
  • allevareto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • adottareto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • nutrireto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • rafforzareto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • favorireto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • coltivareto cultivate and grow something
  • accrescereto cultivate and grow something
  • promuovereto cultivate and grow something
  • nutrireto nurse or cherish something
  • accudireto nurse or cherish something
  • curareto nurse or cherish something
  • sostenereto nurse or cherish something
Māori taurima, whāngai
  • taurimato nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • whāngaito nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • ahuto cultivate and grow something
  • ahuahuto cultivate and grow something
  • kumanuto nurse or cherish something
  • rauhīto nurse or cherish something
Portuguese adotivo, adoptivo
  • adotivoproviding parental care to unrelated children
  • adoptivoproviding parental care to unrelated children
  • criarto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • cultivarto cultivate and grow something
  • nutrirto nurse or cherish something
  • cuidarto nurse or cherish something
Romanian adoptiv
  • adoptivproviding parental care to unrelated children
Russian приёмный, приёмный
  • приёмный (prijómnyj)providing parental care to unrelated children
  • приёмный (prijómnyj)receiving such care
  • воспи́тывать (vospítyvatʹ)to nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • поощря́ть (pooščrjátʹ)to cultivate and grow something
  • леле́ять (leléjatʹ)to nurse or cherish something
  • хо́лить (xólitʹ)to nurse or cherish something
Scottish Gaelic altraim, altraim
  • altraimto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • altraimto nurse or cherish something
Spanish adoptivo, adoptivo
  • adoptivoproviding parental care to unrelated children
  • adoptivoreceiving such care
  • adoptadoreceiving such care
  • acogerto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • cobijarto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • alentarto cultivate and grow something
Swedish adoptera, uppfostra
  • adopteraproviding parental care to unrelated children
  • uppfostrato nurture or bring up offspring; or to provide similar parental care to an unrelated child
Turkish yetiştiren, evlatlık
  • yetiştirenproviding parental care to unrelated children
  • evlatlıkreceiving such care
  • yetiştirmekto nurture or bring up offspring; or to provide similar parental care to an unrelated child
  • beslemekto cultivate and grow something
  • yetiştirmekto cultivate and grow something
  • büyütmekto cultivate and grow something
  • beslemekto nurse or cherish something
Welsh maethu
  • maethuto nurture or bring up offspring; or to provide similar parental care to an unrelated child

Rhymes & wordplay

Rhymes with foster

All rhymes →

Anagrams

Cite this entry
APA

foster. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/foster

MLA

“foster.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/foster. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “foster,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/foster.

Source: foster on Wiktionary, CC BY-SA 4.0.