NSD: These are three letters that, when put together in this order, signify a huge day in college and high school athletics.

This is national signing day, when high school athletes sign national letters of intent to attend a school, and it falls on the first Wednesday in February every year. Though most commonly associated with football, the day can apply to all sorts of sports.

For Southern Regional High School, three athletes from three sports participated in national signing day: soccer player…