How to Say "express" in Spanish

Use 'expreso' when referring to something that travels quickly or directly, like a train or a bus service.

Use 'relámpago' to describe a very fast, often brief, action, trip, or event, emphasizing its suddenness and brevity.

Learners often confuse 'expreso' and 'relámpago' because both relate to speed. Remember that 'expreso' is typically for transportation (trains, buses) that is direct and fast, while 'relámpago' describes an event or action that is exceptionally brief and sudden.