* Scottish Gaelic: Words like `facal` (pronounced roughly as "fack-al") are common and cover a general meaning of "word." Other options exist depending on the intended meaning.
* Irish Gaelic: `focal` (pronounced roughly as "fo-kal") is the equivalent of `facal` in Scottish Gaelic and is the most common translation for "word." Again, other words might be more appropriate depending on context (e.g., a single spoken word vs. a written word, a promise, etc.).
Therefore, there's no single correct spelling. You need to specify the context to get a more precise translation.