EnglishWikipedia has an article on:

ch

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ch (mixed caseCh,upper caseCH)

1. Adigraph fromc andh, considered an individual letter in some languages.

ch

1. Alternative form ofcosh(“hyperbolic cosine”)
2. (international standards)ISO 639-1language code forChamorro.

ch (countable anduncountable,pluralchs)

1. Abbreviation ofchain, a unit of measurement equal to 22yards
2. (crochet)Abbreviation ofchain (stitch)
3. Abbreviation ofchannel, in reference to telephones, audio, radio, and television

   5.1ch surround sound

4. Abbreviation ofchapter, main section of abook
   • 2007,The New Oxford Annotated Bible with the Apocryphal/Deuterocanonical Books, page143:

     Ch 2 secondarily interrupts the flow betweenchs 1 and 3 (see 2.1–16n.).

5. Abbreviation ofchestnut, a dark reddish-brown coloredhorse
   • 2014, Kenneth Hinchcliff, Andris Kaneps, Raymond Geor,Equine Sports Medicine and Surgery, page675:

     NAME OF HORSE (COLOR, SEX, YEAR BORN)
     Secretariat (ch.s. 1970)

ch

1. (crochet)Abbreviation ofchain.
   • 2011 August 23, Carmen Heffernan, “How to make colourful crocheted flowers”, inThe Guardian‎^[1]:

     Ch 4, sl st to 1st sl st to close.

Aphetic form ofich,utch, ultimately fromOld Englishiċ(“I”). CompareDutch'k, an aphetic variant ofik(“I”). More atich,I.

• IPA^(key): /t͡ʃ/

ch

1. (obsolete, dialectal)Alternative form ofI

• h/c,hc,H/C,H.C.,HC,H&C

• IPA^(key): /tʃʼ/

ch (uppercaseCh)

1. Aletter of theBilen Latin alphabet.

• IPA^(key): /tʃ/

ch (upper caseCh)

1. A letter of theMazahua alphabet.

• (Latin-script letters)A a,Ⱥ ⱥ,A̱ a̱,B b,C c,Cꞌ cꞌ,Cj cj,Cu cu,Cꞌu cꞌu,Cju cju,Ch ch,Chꞌ chꞌ,Chj chj,D d,Dy dy,E e,Ɇ ɇ,E̱ e̱,G g,Gu gu,Hu hu,ꞌHu ꞌhu,I i,I̱ i̱,J j,Jꞌ jꞌ,Jm jm,Jn jn,Jñ jñ,Ju ju,Jy jy,L l,M m,Mꞌ mꞌ,N n,Nꞌ nꞌ,Ñ ñ,Ñꞌ ñꞌ,O o,Ø ø,O̱ o̱,P p,Pj pj,R r,S s,T t,Tꞌ tꞌ,Tj tj,Ts ts,Tsꞌ tsꞌ,Tsj tsj,U u,Ꞹ ꞹ,U̱ u̱,X x,Z z,Zh zh,ꞌ

1. IPA^(key): /t͜ʃʰ/

ch (upper caseCh)

1. Aletter of the Chipewyanalphabet, written in theLatin script.

ch (lower case,upper caseCH,mixed caseCh)

1. adigraph, the fourteenth letter of theCzech alphabet, afterh and beforei

In names or at the beginning of a sentence the mixed caseCh is used (e. g.Chrudim).

ch

1. A digraph used in theh-sistemo to representĉ.

• gh,hh,jh,sh
• cx,gx,hx,jx,sx,ux

• ch.

Abbreviation ofchaque(“each”).

ch (invariable)

1. ea(each)

Abbreviation ofcheval-vapeur(“horsepower”).

Added

EnglishWikipedia has an article on:

Metric horsepower

Wikipedia

ch m (pluralch)

1. hp(horsepower)

The abbreviationch is used for all types of (metric) horsepower excepttax horsepower, which uses the initialismscv orCV.

• IPA^(key): /ᵏǀʰ/

ch (upper caseCh)

1. A letter of the practicalHadza alphabet.

 Ch (digráf) on Hungarian Wikipedia

• (on its own)IPA^(key): [ˈt͡seːɦaː]
• (within words)IPA^(key): /xː/,/t͡ʃ/,/ç/,/çː/,/h/,/k/,/ʃ/(depending on the word)

ch (lower case,upper caseCh)

1. A digraph used in several Hungarian words, as well as in some surnames, given names, and geographical names.

It is used (among others) in the following words, along with their derivations and compounds:Achilles-ín,allochton,acháj,achát,akrosztichon,almanach,anarchia/​​anarchikus/​anarchista/​anarchizmus,archaikus/​archaizál/​archaizmus,archeológia/​archeológus,archimandrita,architektúra,archivál/​archivális/​archívum,autochton,bacchanália,bacchánsnő,baldachin,barchesz,barkochba/​barkochbázik,bronchitisz,cech,chanti,charleston,charta,charter,chartizmus,chata,chianti,chorijambus,chripka,couchette,disztichon,durchmars,echó,echt,eucharisztia/​eucharisztikus,eunuch,exarcha,fach,franchise,gaucho,gouache,guttapercha,hierarchia/​​hierarchikus,hipochonder/​hipochondria,ichtioszaurusz,jacht,kapitälchen,krach,lichthóf,macher,machiavellizmus,machináció/machinál,malachit,mannlicher,matriarchátus,mazochista/​mazochizmus,mechanika/​​mechanikus/​​mechanisztikus/​mechanizál/​mechanizmus,mettlachi,moloch,monarchia/​monarchikus/​monarchista,oligarcha/​oligarchia/​oligarchikus,orchidea,patriarcha/​patriarchális/​patriarchátus,pech/​peches,poncho,poncichter,psziché/​pszichiáter/​pszichiátria/​pszichikai/​pszichikum/​pszicho-/​​pszichózis,richtig,rizskoch,sarlach,stich,strichel,szacharin,szinekdoché,sztrichnin,technika/​technikum/​technikus/​technokrácia/​technokrata/​​technológia/​technológus,trachoma,trocheus,vlach,winchester.

Officially recognized given names:Achilles,Achillesz,Áchim,Archibald,Joachim,Melchior,Orchidea,Psziché,Ráchel,Richárd.^[1]

Surnames (a selection from notable people^[2]):Aulich,Damjanich,Forgách,Keglevich,Knézich,Kovách,Laczkovich,Madách,Maderspach,Orlay Petrich,Széchenyi,Széchényi,Zách,Zichy.

Geographical names (along with their derivations, e.g.chilei):Charlestown,Chatham-szigetek,Chile,Chișinău,Déli-Georgia és Déli-Sandwich-szigetek,Liechtenstein,Nouakchott,Seychelle-szigetek as well as two settlements in Hungary,Chernelházadamonya andZichyújfalu, a hill in Budapest,Széchenyi-hegy (named afterIstván Széchenyi) and a neighborhood in Budapest,Széchenyihegy (named after the hill).

• (Latin-script letters)betű;A a,Á á,B b,C c,Cs cs,D d,Dz dz,Dzs dzs,E e,É é,F f,G g,Gy gy,H h,I i,Í í,J j,K k,L l,Ly ly,M m,N n,Ny ny,O o,Ó ó,Ö ö,Ő ő,P p,R r,S s,Sz sz,T t,Ty ty,U u,Ú ú,Ü ü,Ű ű,V v,Z z,Zs zs.Only in the extended alphabet:Q qW wX xY y.Commonly used: ch.Also defined: à ë.In surnames (selection):äaaczdseéeöewoeoóthts ÿ.

1. IPA^(key): /x/,/ç/

ch (upper caseCh)

1. Adigraph in Irish orthography

ch (upper caseCh)

1. (obsolete, Tindall orthography)A letter of the Khoekhoe alphabet; modernǀh.

ch (lower case,upper caseCH,mixed caseCh)

1. (obsolete) a letter used in older, pre-World-War-II Latvian spelling, but now replaced everywhere byh (upper caseH)

This letter can still be found in older books, or in books written by the Latvian diaspora prior to the fall of the Soviet Union. It used to represent the sound of IPA symbol /x/, as distinct from /h/; but since these sounds have merged as /x/ in current Latvian pronunciation, <h> (= /x/) is now used in all cases.

• IPA^(key): /x/

ch (upper caseCH,mixed caseCh)

1. The twelfthletter of the Lower Sorbianalphabet, calledcha and written in theLatin script.

Alphabetized between H and I.

• (Latin-script letters)pismik;A a,B b,C c,Č č,Ć ć,D d,E e,Ě ě,F f,G g,H h,Ch ch,I i,J j,K k,Ł ł,L l,M m,N n,Ń ń,O o (Ó ó),P p,R r,Ŕ ŕ,S s,Š š,Ś ś,T t,U u,W w,Y y,Z z,Ž ž,Ź ź
• (obsolete letters)B́b́,Ėė,Ḿḿ,Ṕṕ,ſ,ß,Ꞩẜ,Ẃẃ

• IPA^(key): /tʃʰ/

ch (uppercaseCh)

1. Aletter of theMam alphabet.

ch (upper caseCh)

1. Aletter of the Navajoalphabet, written in theLatin script.

• (Latin-script letters)A a (Á á,Ą ą,Ą́ ą́),B b,Ch ch,Chʼ chʼ,D d,Dl dl,Dz dz,E e (É é,Ę ę,Ę́ ę́),G g,Gh gh,H h,Hw hw,X x,I i (Í í,Į į,Į́ į́),J j,K k,Kʼ kʼ,Kw kw,ʼ,L l,Ł ł,M m,N n (Ń ń),O o (Ó ó,Ǫ ǫ,Ǫ́ ǫ́),S s,Sh sh,T t,Tʼ tʼ,Tł tł,Tłʼ tłʼ,Ts ts,Tsʼ tsʼ,W w,Y y,Z z,Zh zh

• IPA^(key): [t͜sʰ]

ch

1. A letter of theOsage Latin alphabet. Osage script𐓴.

• (phoneme)IPA^(key): /x/

ch (upper caseCh)

1. The sixteenthletter of the Slovakalphabet, written in theLatin script.

• (Latin-script letters)písmeno;A a,Á á,Ä ä,B b,C c,Č č,D d,Ď ď,Dz dz,Dž dž,E e,É é,F f,G g,H h,Ch ch,I i,Í í,J j,K k,L l,Ĺ ĺ,Ľ ľ,M m,N n,Ň ň,O o,Ó ó,Ô ô,P p,Q q,R r,Ŕ ŕ,S s,Š š,T t,Ť ť,U u,Ú ú,V v,W w,X x,Y y,Ý ý,Z z,Ž ž

• “ch”, inSlovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak),https://slovnik.juls.savba.sk,2003–2025

ch (lower case,upper caseCH,mixed caseCh)

1. che, the former fourth letter of the Spanish alphabet, afterc and befored

• Since 1994, this letter has been treated asc followed byh for collation (sorting) purposes only. In 2010, this letter was officially removed by theRAE from the Spanish alphabet.

• “ch”, inDiccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8,Royal Spanish Academy [Spanish:Real Academia Española], 2024 December 10

Borrowed fromSpanishch.

• (Standard Tagalog)
  • IPA^(key): /ˈt͡ʃe/[ˈt͡ʃɛ](letter name, chiefly upper class)
    • Rhymes:-e
  • IPA^(key): /ˈt͡se/[ˈt͡sɛ](letter name)
    • Rhymes:-e
  • IPA^(key): /ˈse/[ˈsɛ](letter name)
    • Rhymes:-e
  • IPA^(key): /t͡ʃ/[t͡ʃ](phoneme, chiefly upper class)
  • IPA^(key): /ts/[t̪s](phoneme)
  • IPA^(key): /s/[s](phoneme)

ch (lower case,upper caseCH,Baybayin spellingᜆ᜔ᜐᜒ)(historical)

1. The fourthletter of the Tagalogalphabet (theAbecedario), calledche and written in theLatin script.

• IPA^(key): /tʃʰ/

ch (upper caseCh)

1. Aletter of the Tlingitalphabet, written in theLatin script.

• Canada:
• (Latin-script letters)A a,Á á,À à, â,Ch ch,Chʼ chʼ,D d,Dł dł,Dz dz,E e,É é,È è,Ê ê,G g,Gw gw,Gh gh,Ghw ghw,H h,I i,Í í,Ì ì,Πî,J j,K k,Kw kw,Kʼ kʼ,Kʼw kʼw,Kh kh,Khw khw,Khʼ khʼ,Khʼw khʼw (L l),Ł ł,Łʼ łʼ (M m),N n (O o),S s,Sʼ sʼ,Sh sh,T t,Tʼ tʼ,Tl tl,Tlʼ tlʼ,Ts ts,Tsʼ tsʼ,U u,Ú ú,Ù ù,Û û,W w,X x,Xw xw,Xʼ xʼ,Xʼw xʼw,Xh xh,Xhw xhw,Xhʼ xhʼ,Xhʼw xhʼw,Y y (Ÿ ÿ),․
• US:
• (Latin-script letters)A a,Á á,Aa aa,Áa áa,Ch ch,Chʼ chʼ,D d,Dl dl,Dz dz,E e,É é,Ee ee,Ée ée,Ei ei,Éi éi,G g,Gw gw,G̱ g̱,G̱w g̱w,H h,I i,Í í,J j,K k,Kw kw,Kʼ kʼ,Kʼw kʼw,Ḵ ḵ,Ḵw ḵw,Ḵʼ ḵʼ,Ḵʼw ḵʼw,L l,Lʼ lʼ (Ḻ ḻ,M m),N n (O o),Oo oo,Óo óo,S s,Sʼ sʼ,Sh sh,T t,Tʼ tʼ,Tl tl,Tlʼ tlʼ,Ts ts,Tsʼ tsʼ,U u,Ú ú,W w,X x,Xw xw,Xʼ xʼ,Xʼw xʼw,X̱ x̱,X̱w x̱w,X̱ʼ x̱ʼ,X̱ʼw x̱ʼw,Y y (Ÿ ÿ,Y̱ y̱),․

• (phoneme)IPA^(key): /tʃ/

ch (upper caseCh)

1. The twenty-eighthletter of the Uzbekalphabet, written in theLatin script.

• (Latin-script letters)harf;A a,B b,D d,E e,F f,G g,H h,I i,J j,K k,L l,M m,N n,O o,P p,Q q,R r,S s,T t,U u,V v,X x,Y y,Z z,Oʻ oʻ,Gʻ gʻ,Sh sh,Ch ch,Ng ng

• (Hà Nội)IPA^(key): [se˧˧ haːt̚˧˦],[t͡ɕəː˨˩],[t͡ɕəː˨˩ ɲɛ˧˨ʔ]
• (Huế)IPA^(key): [sej˧˧ haːk̚˦˧˥],[t͡ɕəː˦˩],[t͡ɕəː˦˩ ɲɛ˨˩ʔ]
• (Saigon)IPA^(key): [sej˧˧ haːk̚˦˥],[cəː˨˩],[cəː˨˩ ɲɛ˨˩˨]
• Phonetic spelling: xê hát, chờ, chờ nhẹ

ch (lower case,upper caseCH,mixed caseCh)

1. (dated)Traditionally the sixthletter of the Vietnamesealphabet, calledxê hát,chờ orchờ nhẹ and written in theLatin script.

• (Quốc ngữ letters)chữ cái;A a (À à,Ả ả,àã,Á á,Ạ ạ),Ă ă (Ằ ằ,Ẳ ẳ,Ẵ ẵ,Ắ ắ,Ặ ặ), â (Ầ ầ,Ẩ ẩ,Ẫ ẫ,Ấ ấ,Ậ ậ),B b,C c (Ch ch),D d,Đ đ,E e (È è,Ẻ ẻ,Ẽ ẽ,É é,Ẹ ẹ),Ê ê (Ề ề,Ể ể,Ễ ễ,Ế ế,Ệ ệ),G g (Gh gh,Gi gi),H h,I i (Ì ì,Ỉ ỉ,Ĩ ĩ,Í í,Ị ị),K k (Kh kh),L l,M m,N n (Ng ng,Ngh ngh,Nh nh),O o (Ò ò,Ỏ ỏ,Õ õ,Ó ó,Ọ ọ),Ô ô (Ồ ồ,Ổ ổ,Ỗ ỗ,Ố ố,Ộ ộ),Ơ ơ (Ờ ờ,Ở ở,Ỡ ỡ,Ớ ớ,Ợ ợ),P p (Ph ph),Q q (Qu qu),R r,S s,T t (Th th,Tr tr),U u (Ù ù,Ủ ủ,Ũ ũ,Ú ú,Ụ ụ),Ư ư (Ừ ừ,Ử ử,Ữ ữ,Ứ ứ,Ự ự),V v,X x,Y y (Ỳ ỳ,Ỷ ỷ,Ỹ ỹ,Ý ý,Ỵ ỵ)

• (standard)IPA^(key): /ɛχ/
  • (informal)IPA^(key): /χ(ː)/

ch (lower case,upper caseCh)

1. The fourthletter of the Welshalphabet, calledèch and written in theLatin script.It is preceded byC and followed byD.

Like the other Welsh digraphs,ch is considered a distinct letter of the Welsh alphabet for all purposes, including collation. Thus,chwech is alphabetically sortedaftercyllell.

• ch cannot be mutated in Welsh.

• (Latin-script letters)llythyren;A a (Á á,À à, â,Ä ä),B b,C c,Ch ch,D d,Dd dd,E e (É é,È è,Ê ê,Ë ë),F f,Ff ff,G g,Ng ng,H h,I i (Í í,Ì ì,Πî,Ï ï),J j,L l,Ll ll,M m,N n,O o (Ó ó,Ò ò,Ô ô,Ö ö),P p,Ph ph,R r,Rh rh,S s,T t,Th th,U u (Ú ú,Ù ù,Û û,Ü ü),W w (Ẃ ẃ,Ẁ ẁ,Ŵ ŵ,Ẅ ẅ),Y y (Ý ý,Ỳ ỳ,Ŷ ŷ,Ÿ ÿ)

• R. J. Thomas, G. A. Bevan, P. J. Donovan, A. Hawke et al., editors (1950–present), “ch”, inGeiriadur Prifysgol Cymru Online (in Welsh), University of Wales Centre for Advanced Welsh & Celtic Studies

• IPA^(key): /ᵏǀʰ/

ch (upper caseCh)

1. A digraph inXhosa orthography.

• IPA^(key): /t̪ʲ/ (pronounced[t͡ɕ])

ch (upper caseCh)

1. A letter of theYele alphabet.

• (Latin-script letters)A a,â,b,Ch ch,D d,e,é,ê,Gh gh,i,î,j,K k,L l,M m,N n,Ń ń,o,ó,P p,T t,U u,V v,W w,Y y,꞉

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