English never seems to run out of new words. Before it was google, then selfie, and now people are calling their favorite athlete goated. Nouns, verbs, adjectives, and adverbs all take these newcomers in stride. Linguists group these categories together and call them open class, because they can easily expand with freshly coined words.
Other categories, however, are not so welcoming. Pronouns (I, you, she), prepositions (in, on, under), determiners (the, this, those), and conjunctions (and, but, or) belong to the closed class. These are the workhorse function words that hold sentences together, and English almost never invents new ones.
And yet, in the wilds of modern speech, something curious has happened. A new conjunction has slipped into the English language:
“Slash.”
Not the punctuation mark on your keyboard, but…