Dialect/ˈdaɪəlekt/ Definition 1 of 2Pro Tip 1/3Geographical Variation Dialects often change geographically, even within the same language. Driving across Spain, you'll hear different Spanish dialects. Pro Tip 2/3Identity Marker A dialect can reveal where someone is from or their social background. Her dialect indicated she was from the northern countryside. Pro Tip 3/3Cultural Uniqueness Local dialects may include unique sayings and expressions of cultural significance. New Orleans dialect has Creole influences and unique phrases.