Since/sɪns/ Definition 1 of 3Pro Tip 1/3Time Reference Use 'since' to indicate the starting point of actions or situations that continue to the present. It's been raining since morning. Pro Tip 2/3Ongoing Relevance 'Since' hints that an action or state continues to have relevance now, irrespective of when it started. She's felt much happier since moving to Spain. Pro Tip 3/3Fixed Point The time expression after 'since' typically refers to a specific moment in the past, like dates or events. I've been a vegetarian since 2012.