"Loch" is a Scottish Gaelic word that refers to a lake, especially in Scotland. While some words might sound similar when spoken, they don't share the same meaning:
* Lock: This word refers to a device for securing a door or container. It's spelled differently and has a distinct meaning.
* Lox: This refers to brined salmon, which has a different pronunciation and spelling.
Therefore, there is no exact homonym for "loch" in English.