* Scottish Gaelic: The most common word is feirm. This is a loanword from English, however. There isn't a single, perfect equivalent from older Scottish Gaelic vocabulary. You might find older, less common words used depending on context, but *feirm* is the standard and widely understood term.
* Irish Gaelic: The word is feirm, also a loanword from English. Similar to Scottish Gaelic, there isn't a direct, purely native equivalent that covers all meanings of "farm".
In both languages, while there are words describing aspects of farming (e.g., land, fields, livestock), "feirm" is the most straightforward and commonly used translation of "farm."