1 adverb in whichina c m uit's a programme wherein staff are retrainedis clár é ina gcuirtear athoiliúint ar an bhfoireann2 adverb interrogative: in which place or context?cá c m ucén áit c m ucá háit c m uwherein do they say this?cén áit a ndeir siad é seo?3 pronoun the place or context in whichcá c m ucén áit c m ucá háit c m uit lets them know wherein they're failingdeir sé leo cén áit a bhfuil ag teip orthu