Irish, "Irish Gaelic", or "Gaeilge" is a language spoken in Ireland. Irish is a Celtic language. This means that Irish is similar to Scottish Gaelic, Breton, Cornish, Manx and Welsh. Many people who speak Irish can understand some Scottish Gaelic, but not Welsh, because the Celtic languages are divided into two groups. One group is called the p-Celtic languages and the other is called the q-Celtic languages. Irish and Scottish Gaelic are q-Celtic languages and Welsh is a p-Celtic language. Irish has no "yes" or "no" words.