shoulder
n.— «The fares, good for round trip or one-way, are prices for basic, shoulder, peak and holiday (Christmas). Certain restrictions apply.» —“Cycling Canada” by Carolyn McGuire Chicago Tribune Aug. 7, 1988. (source: Double-Tongued Dictionary)
Further reading
When a teenager went a week without talking as part of a school project, he noticed a surprising side effect: Instead of rehearsing a response to what other people were saying to him, he was focused on listening — and feeling smarter as a result...
If you take up texting and social media late in life, there’s a lot to learn! A twenty-something wants advice getting her dad up to speed on memes, Instagram, and animated images. Plus, when you’re on a long road trip, what do you call...