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I'm not sure how many people share this experience, but I've personally grown up being taught to spell the seasons with a capital heading, e.g. Spring, Summer, Autumn, Winter.
Yet, when I type the seasons with a capital in Microsoft Word, I'm given the blue squiggly line under them, telling me to use spring (or summer, autumn, winter).
Have I been taught incorrectly, or is this a MS Word error?