Gaelic-English

Resources in this category:

Search Online Gaelic Dictionaries
http://www.ceantar.org/Dicts/search.html

This site consists of 4 Gaelic dictionaries from which you can search: an Etymological Dictionary of the Gaelic Language (Scottish Gaelic), The School Gaelic Dictionary (Scottish Gaelic), Fockleyr Gaelg Baarle (Manx Gaelic), and Gramadach Lexicon (Irish Gaelic). Then decide what type of word you are searching: headword, word, or substring.

Stor-data Briathrachais Gaidhlig - Rurachadh
http://www.smo.uhi.ac.uk/gaidhlig/faclair/sbg/lorg.php

This source is a Gaelic dictionary that translates from English to Gaelic, and back. However, there is no English on the site. But, the default search field is "Beurla", which means English in Gaelic. So, start in that field, type any English word, and you will get your translation.