What is the meaning of ک?

The twenty-fifth letter of the Acehnese alphabet, written in the Arabic script.

The twenty-second letter of the Arabic alphabet, written in the Arabic script; an alternative version used only in rasm writing, but still found in very early Quranic manuscripts.

A letter of the Azerbaijani alphabet, written in the Arabic script; preceded by ق and followed by گ.

The thirty-sixth letter of the Balti alphabet, written in the Arabic script.

The thirty-fifth letter of the Burushaski alphabet, written in the Arabic script.

The thirty-third letter of the Kashmiri alphabet, written in the Arabic script; preceded by ق and followed by کھ.

The twenty-fifth letter of the Malay alphabet, written in the Arabic script.

obsolete form of ݢ

Jawi spelling of ke.‎

The thirty-second letter of the Pashto alphabet, written in the Arabic script; preceded by ق and followed by ګ.

The twenty-fifth letter of the Persian alphabet, called کاف and written in the Arabic script; preceded by ق and followed by گ.

The twenty-eighth letter of the Punjabi alphabet, written in the Shahmukhi script; preceded by ق (qāf) and followed by گ (gāf).

approximately, roughly, nearly

a little, a bit, slightly

wrong, bad, mis-, dys-, mal-, ill-

The forty-first letter of the Sindhi alphabet, written in the Arabic script; preceded by ڪ and followed by گ.

The twenty-ninth letter of the Urdu alphabet, written in the Arabic script; preceded by ق and followed by گ.

Source: wiktionary.org