fluir

See also: fluír and flùir

Aromanian

Alternative forms

• fluiru

Etymology 1

From or related to fluiarã / fluearã. Compare Romanian fluiera, fluier.

Verb

fluir (participle fluiratã)

1. to whistle

   Synonym: shuir

Related terms

• fluiarã, fluearã
• fluirari, fluirare
• fluirat

Noun

fluir n (plural fluiri / fluire)

1. alternative form of fluiarã (“whistle”)

Etymology 2

From the above, given the comparison of a bone to a flute; compare Romanian fluier; cf. also the semantic evolution in Latin tibia, which also possessed the sense of "flute".

Alternative forms

• fljer, fler, fljor

Noun

fluir n (plural fluiri / fluire)

1. (anatomy) tibia, shinbone

   Synonyms: aridã, cãlami, chilunghi

Catalan

Etymology

Borrowed from Latin fluere, with normal change of conjugation to -ir.

Pronunciation

• IPA^(key): (Central, Balearic) [fluˈi]
• IPA^(key): (Valencia) [fluˈiɾ]

• Audio (Catalonia):

  (file)

Verb

fluir (first-person singular present flueixo, first-person singular preterite fluí, past participle fluït)

1. (intransitive) to flow

Conjugation

    Conjugation of fluir (third conjugation, with -eix-)

infinitive			fluir
gerund			fluint
past participle				masculine		feminine
		singular		fluït		fluïda
		plural		fluïts		fluïdes
person		singular			plural
		first	second	third	first	second	third
indicative		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	flueixo	flueixes	flueix	fluïm	fluïu	flueixen
	imperfect	fluïa	fluïes	fluïa	fluíem	fluíeu	fluïen
	future	fluiré	fluiràs	fluirà	fluirem	fluireu	fluiran
	preterite	fluí	fluïres	fluí	fluírem	fluíreu	fluïren
	conditional	fluiria	fluiries	fluiria	fluiríem	fluiríeu	fluirien
subjunctive		jo	tu	ell/ella vostè	nosaltres nós	vosaltres vós	ells/elles vostès
	present	flueixi	flueixis	flueixi	fluïm	fluïu	flueixin
	imperfect	fluís	fluïssis	fluís	fluíssim	fluíssiu	fluïssin
imperative		—	tu	vostè	nosaltres	vosaltres vós	vostès
	affirmative	—	flueix	flueixi	fluïm	fluïu	flueixin
	negative (no)	—	no flueixis	no flueixi	no fluïm	no fluïu	no flueixin

Related terms

• fluent
• fluid
• flux

Further reading

• “fluir”, in Diccionari de la llengua catalana [Dictionary of the Catalan Language] (in Catalan), second edition, Institute of Catalan Studies [Catalan: Institut d'Estudis Catalans], April 2007

Ido

Pronunciation

• IPA^(key): /ˈfluir/

Verb

fluir

1. past infinitive of fluar

Middle French

Etymology

From Old French. Borrowed from Latin fluō. Doublet of fluer.

Verb

fluir

1. (intransitive) to flow

Conjugation

• Middle French conjugation varies from one text to another. Hence, the following conjugation should be considered as typical, not as exhaustive.

Conjugation of fluir

infinitive	simple	fluir
	compound	avoir + past participle
present participle1 or gerund2	simple	fluissant
	compound	present participle or gerund of avoir + past participle
past participle		flui
		singular			plural
		first	second	third	first	second	third
indicative		ie (i’)	tu	il, elle	nous	vous	ilz, elles
(simple tenses)	present	fluis	fluis	fluit	fluissons	fluissez	fluissent
	imperfect	fluissois, fluissoys	fluissois, fluissoys	fluissoit, fluissoyt	fluissions	fluissiez	fluissoient, fluissoyent
	past historic	fluis	fluis	fluit	fluismes	fluistes	fluirent
	future	fluirai, fluiray	fluiras	fluira	fluirons	fluirez	fluiront
	conditional	fluirois, fluiroys	fluirois, fluiroys	fluiroit, fluiroyt	fluirions	fluiriez	fluiroient, fluiroyent
(compound tenses)	present perfect	present indicative of avoir + past participle
	pluperfect	imperfect indicative of avoir + past participle
	past anterior	past historic of avoir + past participle
	future perfect	future of avoir + past participle
	conditional perfect	conditional of avoir + past participle
subjunctive		que ie (i’)	que tu	qu’il, qu’elle	que nous	que vous	qu’ilz, qu’elles
(simple tenses)	present	fluisse	fluisses	fluisse	fluissions	fluissiez	fluissent
	imperfect	fluisse	fluisses	fluist	fluissions	fluissiez	fluissent
(compound tenses)	past	present subjunctive of avoir + past participle
	pluperfect	imperfect subjunctive of avoir + past participle
imperative		–	tu	–	nous	vous	–
simple		—	fluis	—	fluissons	fluissez	—
compound		—	simple imperative of avoir + past participle	—	simple imperative of avoir + past participle	simple imperative of avoir + past participle	—
1 The present participle was variable in gender and number until the 17th century (Anne Sancier-Château [1995], Une esthétique nouvelle: Honoré d'Urfé, correcteur de l'Astrée, p. 179). The French Academy would eventually declare it not to be declined in 1679.
2 The gerund was held to be invariable by grammarians of the early 17th century, and was usable with preposition en, as in Modern French, although the preposition was not mandatory (Anne Sancier-Château [1995], op. cit., p. 180).

References

• fluir on Dictionnaire du Moyen Français (1330–1500) (in French)

Portuguese

Etymology

Borrowed from Latin fluere, with change of conjugation.

Pronunciation

 

• (Brazil) IPA^(key): /fluˈi(ʁ)/ [flʊˈi(h)], (faster pronunciation) /ˈflwi(ʁ)/ [ˈflwi(h)]

• (Brazil) IPA^(key): /fluˈi(ʁ)/ [flʊˈi(h)], (faster pronunciation) /ˈflwi(ʁ)/ [ˈflwi(h)]
  • (São Paulo) IPA^(key): /fluˈi(ɾ)/ [flʊˈi(ɾ)], (faster pronunciation) /ˈflwi(ɾ)/
  • (Rio de Janeiro) IPA^(key): /fluˈi(ʁ)/ [flʊˈi(χ)], (faster pronunciation) /ˈflwi(ʁ)/ [ˈflwi(χ)]
  • (Southern Brazil) IPA^(key): /fluˈi(ɻ)/ [flʊˈi(ɻ)], (faster pronunciation) /ˈflwi(ɻ)/

 

• (Portugal) IPA^(key): /fluˈiɾ/, (faster pronunciation) /ˈflwiɾ/

• (Portugal) IPA^(key): /fluˈiɾ/, (faster pronunciation) /ˈflwiɾ/
  • (Southern Portugal) IPA^(key): /fluˈi.ɾi/, (faster pronunciation) /ˈflwi.ɾi/

• Audio (Brazil (Caipira)):

  (file)

Verb

fluir (first-person singular present fluo, first-person singular preterite fluí, past participle fluído)

1. to flow, run
2. to pour

Conjugation

    Conjugation of fluir (irregular) (See Appendix:Portuguese verbs)

	Singular			Plural
	First-person (eu)	Second-person (tu)	Third-person (ele / ela / você)	First-person (nós)	Second-person (vós)	Third-person (eles / elas / vocês)
Infinitive
Impersonal	fluir
Personal	fluir	fluíres	fluir	fluirmos	fluirdes	fluírem
Gerund
	fluindo
Past participle
Masculine	fluído			fluídos
Feminine	fluída			fluídas
Indicative
Present	fluo	fluis	flui	fluímos	fluís	fluem
Imperfect	fluía	fluías	fluía	fluíamos	fluíeis	fluíam
Preterite	fluí	fluíste	fluiu	fluímos	fluístes	fluíram
Pluperfect	fluíra	fluíras	fluíra	fluíramos	fluíreis	fluíram
Future	fluirei	fluirás	fluirá	fluiremos	fluireis	fluirão
Conditional	fluiria	fluirias	fluiria	fluiríamos	fluiríeis	fluiriam
Subjunctive
Present	flua	fluas	flua	fluamos	fluais	fluam
Imperfect	fluísse	fluísses	fluísse	fluíssemos	fluísseis	fluíssem
Future	fluir	fluíres	fluir	fluirmos	fluirdes	fluírem
Imperative
Affirmative		flui	flua	fluamos	fluí	fluam
Negative (não)		não fluas	não flua	não fluamos	não fluais	não fluam

Further reading

• “fluir”, in Dicionário Aulete Digital (in Portuguese), Rio de Janeiro: Lexikon Editora Digital, 2008–2025
• “fluir”, in Dicionário Priberam da Língua Portuguesa (in Portuguese), Lisbon: Priberam, 2008–2025

Scots

Pronunciation

• IPA^(key): /flør/

Noun

fluir (plural fluirs)

1. alternative form of flair

Spanish

Etymology

From Latin fluere.

Pronunciation

• IPA^(key): /fluˈiɾ/ [fluˈiɾ]

• Audio:

  (file)

• Rhymes: -iɾ
• Syllabification: flu‧ir

Verb

fluir (first-person singular present fluyo, first-person singular preterite flui, past participle fluido)

1. (intransitive) to flow

Conjugation

    Conjugation of fluir (See Appendix:Spanish verbs)

infinitive			fluir
gerund			fluyendo
past participle				masculine		feminine
		singular		fluido		fluida
		plural		fluidos		fluidas
		singular			plural
		1st person	2nd person	3rd person	1st person	2nd person	3rd person
indicative		yo	tú vos	él/ella/ello usted	nosotros nosotras	vosotros vosotras	ellos/ellas ustedes
	present	fluyo	fluyestú fluisvos	fluye	fluimos	fluis	fluyen
	imperfect	fluía	fluías	fluía	fluíamos	fluíais	fluían
	preterite	flui	fluiste	fluyó	fluimos	fluisteis	fluyeron
	future	fluiré	fluirás	fluirá	fluiremos	fluiréis	fluirán
	conditional	fluiría	fluirías	fluiría	fluiríamos	fluiríais	fluirían
subjunctive		yo	tú vos	él/ella/ello usted	nosotros nosotras	vosotros vosotras	ellos/ellas ustedes
	present	fluya	fluyastú fluyásvos2	fluya	fluyamos	fluyáis	fluyan
	imperfect (ra)	fluyera	fluyeras	fluyera	fluyéramos	fluyerais	fluyeran
	imperfect (se)	fluyese	fluyeses	fluyese	fluyésemos	fluyeseis	fluyesen
	future1	fluyere	fluyeres	fluyere	fluyéremos	fluyereis	fluyeren
imperative		—	tú vos	usted	nosotros nosotras	vosotros vosotras	ustedes
	affirmative		fluyetú fluivos	fluya	fluyamos	fluid	fluyan
	negative		no fluyas	no fluya	no fluyamos	no fluyáis	no fluyan

¹Rare; now chiefly used in legal language.
²Argentine and Uruguayan voseo prefers the tuteo-form for the present subjunctive.

    Selected combined forms of fluir

These forms are generated automatically and may not actually be used. Pronoun usage varies by region.

		singular			plural
		1st person	2nd person	3rd person	1st person	2nd person	3rd person
with infinitive fluir	dative	fluirme	fluirte	fluirle, fluirse	fluirnos	fluiros	fluirles, fluirse
	accusative	fluirme	fluirte	fluirlo, fluirla, fluirse	fluirnos	fluiros	fluirlos, fluirlas, fluirse
with gerund fluyendo	dative	fluyéndome	fluyéndote	fluyéndole, fluyéndose	fluyéndonos	fluyéndoos	fluyéndoles, fluyéndose
	accusative	fluyéndome	fluyéndote	fluyéndolo, fluyéndola, fluyéndose	fluyéndonos	fluyéndoos	fluyéndolos, fluyéndolas, fluyéndose
with informal second-person singular tuteo imperative fluye	dative	flúyeme	flúyete	flúyele	flúyenos	not used	flúyeles
	accusative	flúyeme	flúyete	flúyelo, flúyela	flúyenos	not used	flúyelos, flúyelas
with informal second-person singular voseo imperative flui	dative	fluime	fluite	fluile	fluinos	not used	fluiles
	accusative	fluime	fluite	fluilo, fluila	fluinos	not used	fluilos, fluilas
with formal second-person singular imperative fluya	dative	flúyame	not used	flúyale, flúyase	flúyanos	not used	flúyales
	accusative	flúyame	not used	flúyalo, flúyala, flúyase	flúyanos	not used	flúyalos, flúyalas
with first-person plural imperative fluyamos	dative	not used	fluyámoste	fluyámosle	fluyámonos	fluyámoos	fluyámosles
	accusative	not used	fluyámoste	fluyámoslo, fluyámosla	fluyámonos	fluyámoos	fluyámoslos, fluyámoslas
with informal second-person plural imperative fluid	dative	fluidme	not used	fluidle	fluidnos	fluíos	fluidles
	accusative	fluidme	not used	fluidlo, fluidla	fluidnos	fluíos	fluidlos, fluidlas
with formal second-person plural imperative fluyan	dative	flúyanme	not used	flúyanle	flúyannos	not used	flúyanles, flúyanse
	accusative	flúyanme	not used	flúyanlo, flúyanla	flúyannos	not used	flúyanlos, flúyanlas, flúyanse

Related terms

• flojo
• fluente
• fluido
• flujo

Further reading

• “fluir”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025