What is the meaning of Ch?

A digraph from c and h, considered an individual letter in some languages.

Alternative form of cosh (“hyperbolic cosine”)

ISO 639-1 language code for Chamorro.

Abbreviation of chain (“a unit of measurement equal to 22 yards”).

Abbreviation of chain (stitch)

Abbreviation of channel, in reference to telephones, audio, radio, and television.

Abbreviation of chapter (“main section of a book”).

Abbreviation of chestnut (“a dark reddish-brown colored horse”).

Abbreviation of chain.

Alternative form of I.

A letter of the Blin alphabet, written in the Latin script.

A letter of the Central Mazahua alphabet, written in the Latin script.

A letter of the Chipewyan alphabet, written in the Latin script.

A letter of the Hadza alphabet, written in the Latin script.

The third letter of the Isoko alphabet, written in the Latin script.

A letter of the Khoekhoe alphabet, written in the Latin script.

A letter of the Mam alphabet, written in the Latin script.

A letter of the Osage alphabet, written in the Latin script.

A letter of the Tlingit alphabet, written in the Latin script.

A letter of the Yele alphabet, written in the Latin script.

The fourteenth letter of the Czech alphabet, written in the Latin script; preceded by h and followed by i.

A letter of the Esperanto alphabet, written in the Latin script, a digraph used in the h-sistemo to represent ĉ.

abbreviation of chaque (“each, ea”).

abbreviation of cheval-vapeur (“horsepower, hp”).

A digraph of the Hungarian alphabet, written in the Latin script; used in several Hungarian words, as well as in some surnames, given names, and geographical names.

A digraph of the Irish alphabet, written in the Latin script.

A letter of the Latvian alphabet, written in the Latin script; used in older, pre-World-War-II Latvian spelling, but now replaced everywhere by h (upper case H).

The twelfth letter of the Lower Sorbian alphabet, called cha and written in the Latin script; preceded by h and followed by i.

A letter of the Navajo alphabet, written in the Latin script.

The sixteenth letter of the Slovak alphabet, written in the Latin script.

The fourth letter of the Spanish alphabet, called che and written in the Latin script; preceded by c and followed by d.

the fourth letter of the Abecedario, called che and written in the Latin script

The twenty-eighth letter of the Uzbek alphabet, written in the Latin script.

The sixth letter of the Vietnamese alphabet, called xê hát, chờ or chờ nhẹ and written in the Latin script.

The fourth letter of the Welsh alphabet, called èch and written in the Latin script; preceded by c and followed by d.

A digraph of the Xhosa alphabet, written in the Latin script.

Source: wiktionary.org